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Prescription Lens Masks

We have been told by our suppliers that we sell more corrective lens dive mask than the whole of the rest of the Australian dive industry combined. It's because of the detailed information on this web page, plus our excellent customer service and everyday low prices. Please read the following information carefully. Then join the thousands of divers and snorkellers who are seeing clearly underwater using a corrective lens mask from The Scuba Doctor.

Prescription vs Corrective Lens Masks

If you wear prescription glasses, diving and snorkelling masks fitted with lenses with your exact prescription can be obtained. But it's very expensive and time-consuming. Most divers and snorkellers don't require this expensive solution and their needs can be solved with less expensive and quick to obtain corrective lens mask solutions. The important thing here is to make sure that the variety of your needs are taken into consideration and the right solution is chosen.

Negative Correction Lens — If you are a snorkeller you probably just need to see objects in the distance, therefore a distance only correction lens can be used with selected masks. That's the case for many divers as well. The solution is what we call a negative corrective lens mask — a negative correction to the whole lens, for short/near-sighted people with myopia.

Positive Correction Lens — For some scuba divers and snorkelers it's the reverse and and they need positive correction lenses for near vision issues. The solution is what we call a positive corrective lens mask — a positive correction to the whole lens, for long/far-sighted people with hypermetropia.

Bifocal Correction Lens — Some scuba divers just need a bit of help reading their gauges, dive computers, or camera controls. The solution is what we call a 'bifocal', or 'gauge reading', corrective lens mask — clear or planar on top and a lower pane with positive correction for reading.

Sometimes snorkellers and scuba divers have eye shapes that require lens shapes not available with corrective lenses. They need an exact, full prescription lens mask solution, and we can't provide it.

Also, some divers may need both distance correction to see the underwater life, and near correction to read gauges and dive computers. Therefore, depending on your prescription, true bifocal, or truncated, full prescription lenses may be required — distance correction on top and a lower pane with positive correction for reading. This is what we call a full bifocal prescription lens mask solution, and we can't provide it.

Your optometrist is the best person to advise you as to which of the above solutions are right for you. Please show them this web page so that they can understand what we can and can't do. Then they can give you the right and left eye correction values we need to provide your underwater vision solution.

Diving/Snorkelling Mask Corrective Lenses

The Scuba Doctor is able to provide the dive and snorkelling masks listed here already fitted with pre-made corrective lenses that correct close to your prescription, not exact. This is a good solution for most scuba divers and snorkellers with low astigmatism.

Dive mask with corrective lenses
Corrective lens mask: the mask, plus two separate correction lenses.
Supplied with the corrective lenses fitted, plus the original normal lenses.

We can offer dive masks in a range of correction strengths to suit most people. We offer positive and negative corrections and bifocals. Bifocals are great for people who are long sighted and just struggle to view their gauges. The lenses we supply are not the stick on type, they are complete replacements for the current lenses. We can therefore only supply these on a select few masks.

Some of the masks with optional vision correcting lenses can be obtained with either a '-' (minus/negative) dioptre (e.g. -1.5 to -9.0), or a '+' (plus/positive) dioptre (e.g. +1.0 to +4.5), typically in 0.5 increments.

 

Some divers require negative distance vision correction, that is, the diver has 'near-sightedness' and the Rx Sphere value is a '-' dioptre.

Other divers require a positive correction, that is, the diver has 'far-sightedness' and the Rx Sphere value is a '+' dioptre.

To order, you can consult your eyeglass, or contact, prescription for the proper amount of spherical power correction. A spectacle prescription is usually written in the following form:

  sphere   cylinder   axis
OD / R -3.00 / -0.50 x 180
OS / L -3.50 / -1.00 x 180

In order to calculate the power you need to take into account the two aspects of your prescription.

  • The sphere (or sph) is the main part of your prescription and will be '–' for short-sightedness (myopia) and '+' for long-sightedness (hypermetropia).
  • The cylinder (or cyl) is the secondary part of your prescription and refers to the amount of astigmatism you have.

We need the dioptre (diopter) value for each eye. When reading your prescription, 'OS' means your left eye, and 'OD' means your right eye.

You could base the power you order primarily on the amount of short or long-sightedness you have. If you also have a moderate degree of astigmatism (up to 2.00), you could also incorporate up to half of this to choose the most appropriate power. If the result is a quarter dioptre prescription, then you should typically increase to the next higher/stronger dioptre. For example, if the Rx is -1.75, then increase to -2.0 dioptre. If the Rx is +1.75, then increase to +2.0 dioptre. If one eye needs no correction, then order a 'Normal' or 'Plano' lens for that side.

If this all sounds very complicated, it's because it is! You will find websites that let you enter your script values to calculate the two values we need. We know the formula they use, but our optometrist friends tell us using this method would often lead to disappointed customers. It's just not that simple.

The decision about the values you need is best done by your optometrist as they know best what's going on with your eyes, and sometimes those other values in your script come into play.

Once you know the dioptre values you need, you can then select a mask for which the range or dioptre values available matches your requirements.

Bifocal or 'Gauge Reader' Corrective Lenses

Gauges gone fuzzy?Finding the numerals on your gauge too small, especially in the dark? Finding your arm is not long enough, but have pretty good distance vision? If you answered yes to these questions, then you probably have presbyopia, a condition where the eye exhibits a progressively diminished ability to focus on near objects with age. On the surface, the fix is reading glasses (those things you always forget just when you need them most). Bright light also helps, as it constricts the pupils, and decreases spherical aberration. Some people use prescription bifocals, trifocals or multi-focal lenses.

Underwater the solution is a 'Gauge Reader' mask fitted with what the dive industry refers to as Bifocal corrective lenses. These underwater bifocal corrective lenses for masks aren't quite what people are used to with bifocal prescription glasses.

With Gauge Reader dive mask bifocal corrective lenses, the lower pane (roughly a third) has the plus dioptre reading correction, and the rest of the lens is 'Normal' or 'Plano'. That's why they're referred to as Gauge Reading lenses. You need to know the dioptre value for your reading glasses.

Dive mask with bifocal lenses
Bifocal lens mask with gauge reading correction lenses.
Normal (plano) vision for top two thirds and "reading" (plus) correction for bottom third.
Supplied with the bifocal lenses fitted, plus the original normal (plano) lenses.

Bifocal / Gauge Reading corrective lenses are typically available in a dioptre range of +1.0 to +4.5, in 0.5 increments. If you have a quarter dioptre prescription, then increase to the next higher/stronger dioptre. Your eyes will inevitably change and within a few years, you will need the stronger dioptre. Now you can select a mask that has Bifocal / Gauge Reader corrective lenses available with the dioptre value(s) you need.

Note: The bifocal correcting mask lenses we sell have the reading correction attached via a permanent bond by the lens manufacturer. The correction is not an after-market 'stick on' or 'glue in' lens that is not permanent. Our own experience, plus that of our customers, very plainly tells us that none of the after-market 'stick-on' solutions work well, and thus we don't bother selling them.

Please note that all of the masks listed here can have corrective lenses fitted, but only a few of the masks can have bifocal, gauge reading corrective lenses fitted.

What Corrections Do We Offer?

We offer the following levels of prescription/correction, in half dioptre increments:

  • Minus lenses from -1.0 to -9.0*
  • Plus lenses from +1.0 to +4.5*
  • Bifocal lenses from +1.0 to +4.5*

* available on selected masks only.

Please Note: The scripts issued by optometrists use quarter dioptre increments. We can only provide half dioptre increments. This is another reason why you should consult your optometrist, as they will be able to come up with the values you need.

What If I Have Astigmatism?

None of the 'off the shelf' corrective lens masks correct astigmatism, so if the majority of your prescription is astigmatism, or you have astigmatism over 2.00 dioptres, you will need a custom made product for best visual results.

If your astigmatism is less than 2.00 dioptres, or is not the majority of correction, then the corrective lens mask solutions we can provide should be fine. This is another reason why you should consult your optometrist.

Please Consult Your Optometrist

We strongly recommend that you consult your optometrist about which underwater vision correction solution is best for you. We recommend you show them this information. Your optometrist will be able to work out which corrective solutions are available to you and make recommendations as to what to get, plus provide the two dioptre values we need.

We are not optometrists and can't read your script to determine if a corrective lens mask will work for you. Correction lenses typically will work for the vast majority of people, but some eye shapes can't be accommodated this way.

Your prescription may need to be changed because the distance between the lens of your diving mask and your eyes typically is different from the distance between your eyeglasses lenses and your eyes. (This also is one of the reasons your contact lens prescription is different from your eyeglass prescription if you have moderate or high myopia.) An eye care professional specialising in sports eyewear can adjust your prescription for underwater use.

Your optometrist will also be able to provide you with the best spherical correction dioptre values for your left and right eyes given the half dioptre increments of corrective lenses. Then you can order your corrective lens mask from The Scuba Doctor with confidence in achieving a great outcome.

Whatever your preference, there are plentiful corrective options available to ensure that everyone can see clearly to experience the beauty and wonder of the underwater world.

Recommended Optometrist:

Melbourne: David Glennie is an optometrist and experienced scuba diver. His team can check your eyes and translate your script into the values we need for your corrective lenses. They can even show you how it will work.

David Glennie, Karingal Optical
Shop 39, Karingal Hub, 330 Cranbourne Road, Frankston VIC 3199
Tel. 03 9789 4811   www.facebook.com/KaringalOptical/

Fitting the Mask Corrective Lenses

If you buy a complete mask with two corrective lenses from The Scuba Doctor, we will fit the lenses to the mask for you before sending the mask out. You will also receive the original normal (plano) lenses, placed inside the packets the corrective lenses came in.

Corrective Lens Mask Delivery

Order today and your mask with corrective lenses will be assembled and usually Ship the next Business Day.

We typically place orders for your mask with corrective lenses with our suppliers the same day we receive the order from you. In some cases, they will be assembled and shipped directly to you from the suppliers the same business day, or if not, the next business day. Our suppliers are Sydney based, so you need to allow for the usual postal delivery times for the package to reach you from Sydney.

Colour Options: Many of the masks are available with heaps of colour choices. However, sometimes our suppliers get low on some colour options. Please enter any other mask colour options you'd be happy with in the comments during the checkout process. Then we have options to switch to so that your order isn't delayed.

Other Considerations

Custom made prescription lenses made to your exact prescription are sometimes preferred by more advanced divers, for those shooting underwater photo/video, or those who need a bifocal lens with two different types of correction in each lens. We suggest you try Ozbob Scuba for custom made prescription scuba masks.

Because you asked... the negative and positive vision-correcting mask lenses we sell have the magnification ground into the lenses themselves. The bifocal gauge reading correction is attached via a permanent bond by the lens manufacturer. The correction is not an after-market 'stick on' or 'glue in' lens that is not permanent. Our own experience, plus that of our customers, very plainly tells us that none of the after-market 'stick-on' solutions work well, and thus we don't sell them.

Contact Lens Wearers: Not all contact lenses are suitable for diving. Gas permeable lenses (GP lenses) can 'dig' into the eyes below certain depths, because of the pressure. Soft contact lenses can collect waterborne organisms and become contaminated, causing eye infections. If you wear contact lenses under your mask for diving, you need to make sure you blink a lot. Excessive starring can cause bubbles to form underneath your lenses and which may cause minor discomfort and temporary blurring of vision. Also, be sure to have a spare set of contacts (or glasses) available in case you lose a contact lens underwater.

Health Fund Refunds

As best as we can tell, you will be unable to claim a refund from your health fund for the supply of a corrective lens mask. Most health funds require a medical provider item code for a claim to be successful and no dive manufacturer or dive shop we know of has this. However, you may wish to check with your health fund to see if they are more generous.

More Information

For more information please see our Scuba Buying Guides: Buying a Great Dive Mask and Avoiding Mask Squeeze, plus our Dive Gear Features pages: Mask Features and Fixing Underwater Vision Problems.

Note: Diving/snorkelling masks are very different to Swimming Goggles. See Goggles vs Masks. We have available Prescription Swim Goggles.


Melbourne Bommie Dives

Melbourne Bommie Dives by The Scuba Doctor

Bommie is an Australian term for an outcrop of coral reef or rock formation, often resembling a column, that is higher than the surrounding platform of reef or rock and which may be partially exposed at low tide.

Melbourne is fortunate enough to have some magnificent Bommie dive sites both inside and outside Port Phillip, not far from the heads.

Safety Tip: We recommend you read our Boat Diving Safety and Using a Dive Float and Flag pages and use the described Cray/Drift Buoy Line Diver Freedom System when bommie diving from a private boat.

Brads Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Crayfish Dive Site Open Water Rated Reef Dive Site Spearfishing Site
Latitude: 38° 23.612′ S   (38.393541° S / 38° 23′ 36.75″ S)
Longitude: 141° 38.778′ E   (141.646299° E / 141° 38′ 46.68″ E)
Datum: WGS84 Google Map
Added: 2022-05-20 06:22:40 GMT, Last updated: 2022-05-24 05:36:34 GMT
Source: Google Earth
Nearest Neighbour: The Passage Reef Shallow, 836 m, bearing 124°, SE
Point Danger, Portland, Discovery Coast.
Depth: 5 to 15 m.
See the Brads Bommie dive site page

Brown Head Pinnacle

Bommie Dive
Bommie Dive
Boat access
Boat access
Advanced Open Water Rated Marine Park - No Fishing Reef Dive Site Slack Water Wilsons Promontory
Latitude: 39° 2.579′ S   (39.042979° S / 39° 2′ 34.72″ S)
Longitude: 146° 28.693′ E   (146.478218° E / 146° 28′ 41.58″ E)
Datum: WGS84 Google Map
Added: 2022-04-22 12:39:00 GMT, Last updated: 2022-04-22 12:50:13 GMT
Source: Google Earth
Nearest Neighbour: Larkin Cove, 508 m, bearing 232°, SW
Wilsons Promontory Marine Reserve.
Depth: 8 to 35 m.
See the Brown Head Pinnacle dive site page

Castle Rock

Bommie Dive
Bommie Dive
Boat access
Boat access
Crayfish Dive Site Open Water Rated Outside Port Phillip Reef Dive Site
Latitude: 38° 17.887′ S   (38.298117° S / 38° 17′ 53.22″ S)
Longitude: 144° 35.863′ E   (144.597717° E / 144° 35′ 51.78″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-05-07 15:32:54 GMT
Source: GPS (verified)
Nearest Neighbour: Deep Pinnacles, 250 m, bearing 287°, WNW
Depth: 12 to 20 m.
Dive only on: Ebb.
See the Castle Rock dive site page

Christmas Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Advanced Open Water Rated Inside Port Phillip Reef Dive Site Slack Water
Latitude: 38° 17.256′ S   (38.2876° S / 38° 17′ 15.36″ S)
Longitude: 144° 38.570′ E   (144.642833° E / 144° 38′ 34.2″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-04-25 08:04:49 GMT
Source: GPS
Nearest Neighbour: The Cathedral, 298 m, bearing 179°, S
Depth: 7 to 15 m.
See the Christmas Bommie dive site page

Corsair Rock

Bommie Dive
Bommie Dive
Boat access
Boat access
Advanced Open Water Rated Crayfish Dive Site Outside Port Phillip Reef Dive Site Slack Water
Latitude: 38° 18.017′ S   (38.300283° S / 38° 18′ 1.02″ S)
Longitude: 144° 38.481′ E   (144.64135° E / 144° 38′ 28.86″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-05-07 15:46:08 GMT
Source: GPS
Nearest Neighbour: Campbell, 122 m, bearing 284°, WNW
Depth: 3 to 30 m.
Dive only on: SWE.
See the Corsair Rock dive site page

Easter Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Advanced Open Water Rated Crayfish Dive Site Inside Port Phillip Slack Water Subject to Shipping
Latitude: 38° 17.017′ S   (38.283617° S / 38° 17′ 1.02″ S)
Longitude: 144° 38.611′ E   (144.643517° E / 144° 38′ 36.66″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-03-27 08:03:52 GMT
Source: GPS
Nearest Neighbour: Jims Hole, 49 m, bearing 168°, SSE
Depth: 16 to 27 m.
Dive only on: SWF, SWE.
See the Easter Bommie dive site page

Knawesome Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Advanced Open Water Rated Crayfish Dive Site Inside Port Phillip Reef Dive Site Slack Water Subject to Shipping
Latitude: 38° 17.152′ S   (38.285867° S / 38° 17′ 9.12″ S)
Longitude: 144° 39.374′ E   (144.656233° E / 144° 39′ 22.44″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-04-06 12:49:05 GMT
Source: Allie Beckhurst GPS (verified)
Nearest Neighbour: Awesome Reef, 101 m, bearing 17°, NNE
Depth: 12 to 40 m.
Dive only on: SWF, SWE.
See the Knawesome Bommie dive site page

Lonsdale Bommies

Bommie Dive
Bommie Dive
Boat access
Boat access
Crayfish Dive Site Open Water Rated Outside Port Phillip Reef Dive Site
Latitude: 38° 17.983′ S   (38.299717° S / 38° 17′ 58.98″ S)
Longitude: 144° 36.730′ E   (144.612167° E / 144° 36′ 43.8″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-04-06 10:19:48 GMT
Source: GPS (verified)
Nearest Neighbour: Twin Bommies, 142 m, bearing 283°, WNW
Depth: 12 to 18 m.
Dive only on: Ebb.
See the Lonsdale Bommies dive site page

Lonsdale Rock

Bommie Dive
Bommie Dive
Boat access
Boat access
Marine Park - No Fishing Outside Port Phillip Reef Dive Site Slack Water Subject to Shipping
Latitude: 38° 17.960′ S   (38.29933° S / 38° 17′ 57.59″ S)
Longitude: 144° 37.420′ E   (144.62366° E / 144° 37′ 25.18″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-04-06 11:10:13 GMT
Source: GPS
Nearest Neighbour: 16lb Reef, 573 m, bearing 8°, N
Depth: 6 to 15 m.
See the Lonsdale Rock dive site page

McKechnie Craig Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Abalone Dive Site Crayfish Dive Site Open Water Rated Reef Dive Site Spearfishing Site
Latitude: 38° 23.322′ S   (38.388699° S / 38° 23′ 19.32″ S)
Longitude: 142° 8.206′ E   (142.136766° E / 142° 8′ 12.36″ E)
Datum: WGS84 Google Map
Added: 2021-07-24 15:32:48 GMT, Last updated: 2022-05-19 22:47:53 GMT
Source: GPS (verified)
Nearest Neighbour: Boulder Point Reef, 400 m, bearing 202°, SSW
Discovery Coast.
Depth: 8 to 20 m.
See the McKechnie Craig Bommie dive site page

Nelson Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Abalone Dive Site Crayfish Dive Site Open Water Rated Reef Dive Site Spearfishing Site
Latitude: 38° 3.987′ S   (38.066454° S / 38° 3′ 59.23″ S)
Longitude: 140° 59.003′ E   (140.983378° E / 140° 59′ 0.16″ E)
Datum: WGS84 Google Map
Added: 2022-05-19 04:18:09 GMT, Last updated: 2022-05-23 08:08:40 GMT
Source: Peter Ronald GPS
Nearest Neighbour: The Boatshed, Cape Bridgewater, 50,638 m, bearing 132°, SE
Nelson, Discovery Bay, Discovery Coast.
Depth: 2 to 20 m.
See the Nelson Bommie dive site page

New Deep Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Crayfish Dive Site Deep Rated Outside Port Phillip Reef Dive Site Technical Rated
Latitude: 38° 19.079′ S   (38.317983° S / 38° 19′ 4.74″ S)
Longitude: 144° 34.000′ E   (144.566667° E / 144° 34′ 0″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2021-07-16 09:49:04 GMT
Source: GPS
Nearest Neighbour: J5 Yellow Submarine, 815 m, bearing 12°, NNE
Depth: 30 to 42 m.
Dive only on: SWF, SWE, Ebb.
See the New Deep Bommie dive site page

Peeping Tom

Bommie Dive
Bommie Dive
Boat access
Boat access
Abalone Dive Site Crayfish Dive Site Open Water Rated Reef Dive Site Spearfishing Site
Latitude: 38° 21.836′ S   (38.363939° S / 38° 21′ 50.18″ S)
Longitude: 142° 4.212′ E   (142.070206° E / 142° 4′ 12.74″ E)
Datum: WGS84 Google Map
Added: 2021-07-03 04:24:58 GMT, Last updated: 2022-05-23 11:02:18 GMT
Source: GPS (verified)
Nearest Neighbour: The Crags, 3,554 m, bearing 104°, ESE
Discovery Coast.
Depth: 3 to 15 m.
See the Peeping Tom dive site page

Pillar Point Bommie

Bommie Dive
Bommie Dive
Shore access
Shore access
Advanced Open Water Rated Ideal For Snorkelling Marine Park - No Fishing Reef Dive Site Slack Water Wilsons Promontory
Latitude: 39° 2.413′ S   (39.040219° S / 39° 2′ 24.79″ S)
Longitude: 146° 18.335′ E   (146.305576° E / 146° 18′ 20.07″ E)
Datum: WGS84 Google Map | Get directions
Added: 2022-04-23 08:43:38 GMT, Last updated: 2022-04-23 09:17:38 GMT
Source: Google Earth
Nearest Neighbour: Pillar Point, South, 255 m, bearing 41°, NE
Wilsons Promontory Marine Park.
Depth: 2 to 25 m.
See the Pillar Point Bommie dive site page

Prop Bay Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Abalone Dive Site Crayfish Dive Site Open Water Rated Reef Dive Site
Latitude: 38° 25.352′ S   (38.422529° S / 38° 25′ 21.1″ S)
Longitude: 141° 59.729′ E   (141.995488° E / 141° 59′ 43.76″ E)
Datum: WGS84 Google Map
Added: 2021-07-12 20:46:55 GMT, Last updated: 2022-03-27 08:40:28 GMT
Source: Peter Ronald GPS
Nearest Neighbour: Haystack, 135 m, bearing 349°, N
Lady Julia Percy Island, Discovery Coast.
Depth: 6 to 15 m.
See the Prop Bay Bommie dive site page

Shortland Bluff Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Advanced Open Water Rated Crayfish Dive Site Inside Port Phillip Reef Dive Site Slack Water
Latitude: 38° 16.879′ S   (38.281317° S / 38° 16′ 52.74″ S)
Longitude: 144° 39.328′ E   (144.655467° E / 144° 39′ 19.68″ E)
Datum: WGS84 Google Map
Added: 2018-01-17 21:09:37 GMT, Last updated: 2022-04-06 11:54:09 GMT
Source: GPS (verified)
Nearest Neighbour: Boarfish Reef Drift, 102 m, bearing 229°, SW
Depth: 18 to 20 m.
Dive only on: SWF, SWE.
See the Shortland Bluff Bommie dive site page

The Passage Bommie

Bommie Dive
Bommie Dive
Boat access
Boat access
Abalone Dive Site Crayfish Dive Site Open Water Rated Reef Dive Site Spearfishing Site
Latitude: 38° 24.193′ S   (38.403215° S / 38° 24′ 11.57″ S)
Longitude: 141° 38.909′ E   (141.648478° E / 141° 38′ 54.52″ E)
Datum: WGS84 Google Map
Added: 2021-07-22 18:25:50 GMT, Last updated: 2022-05-24 08:39:46 GMT
Source: GPS (verified)
Nearest Neighbour: Big Reef, Portland , 160 m, bearing 161°, SSE
Portland, Discovery Coast.
Depth: 3 to 20 m.
See the The Passage Bommie dive site page

Twin Bommies

Bommie Dive
Bommie Dive
Boat access
Boat access
Crayfish Dive Site Open Water Rated Outside Port Phillip Reef Dive Site
Latitude: 38° 17.965′ S   (38.299417° S / 38° 17′ 57.9″ S)
Longitude: 144° 36.635′ E   (144.610583° E / 144° 36′ 38.1″ E)
Datum: WGS84 Google Map
Added: 2012-07-22 01:00:00 GMT, Last updated: 2022-04-06 10:20:49 GMT
Source: GPS
Nearest Neighbour: Lonsdale Arches, 83 m, bearing 237°, WSW
Depth: 12 to 18 m.
Dive only on: Ebb.
See the Twin Bommies dive site page

Total of 18 dive sites.


DISCLAIMER: No claim is made by The Scuba Doctor as to the accuracy of the dive site coordinates listed here. Should anyone decide to use these GPS marks to locate and dive on a site, they do so entirely at their own risk. Always verify against other sources.

The marks come from numerous sources including commercial operators, independent dive clubs, reference works, and active divers. Some are known to be accurate, while others may not be. Some GPS marks may even have come from maps using the AGD66 datum, and thus may need be converted to the WGS84 datum. To distinguish between the possible accuracy of the dive site marks, we've tried to give each mark a source, e.g. GPS, Google Earth, or unknown.

If you don't understand the differences between the different ways coordinates are given, plus how different datum come into play, you might find the article GPS Conversions by Lloyd Borrett a useful read. It describes the problems associated with locating dive sites using a GPS receiver.

GPS latitude explained


Scuba Doctor Dive Map KML File

In the true spirit of making it easy to obtain, utilise and share the information for non-commercial purposes, you can now Download/view the Scuba Doctor Dive Map GPS Marks (KML file | 427.19 KB | 24-May-2022) in the Keyhole Markup Language (KML) file format used to display geographic data in an Earth browser such as Google Earth or Google Maps.

Some marine GPS units can import the information from a KML file. For others you can use use a file translate program (e.g. GPSBabel) to convert the KML file into an import file format (e.g. GPX) supported by your GPS unit.


Please Help Us To Correct GPS Marks and Add More Melbourne Dive Sites

If you have have information about other dive sites you'd be happy to see added to the information available here, or any corrections and/or updates to the diving site GPS marks listed here, please feel free to Contact Us. See also, Dive Site Help.

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