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Jon Lines / Reef Hooks

A Jon Line is an absolute must for divers decompressing in high current areas but who don't have the option of doing a drifting deco. A Jon Line is attached to the diver and then clipped to a shot line so the diver needn't spend any energy holding onto the shot/anchor line themselves. Plus a Jon line enables more divers to be at same depth on the shot/anchor line without crowding each other.

There's no point in trying to go against the flow. A reef hook lets you attach yourself to a reef or other structure in a current and stay in the same place without exertion. It leaves your hands free for underwater photography and videos.

We have some great Jon lines and reef hooks for scuba diving available from The Scuba Doctor dive shop.

Firefly Aircraft 3

Wreck Dive Wreck Dive | Boat access Boat access

Inside Port Phillip Wreck Dive Site

Fairey Firefly Aircraft | Max Depth: 18 m (59 ft)

Level: Open Water and beyond.

A RAN Fairey Firefly
A RAN Fairey Firefly
© Royal Australian Navy

On 20 July 1947 this Fairey Firefly Second World War-era, carrier-borne, fighter aircraft crashed into the sea off Frankston, Victoria as the result of a collision between another Fairy Firefly at 1500 feet.

See also, Wikipedia: Fairey Firefly,
Heritage Council of Victoria: Fairey Firefly Aircraft - Frankston, and
Australian National Shipwreck Database: Frankston - Fairey Firefly.

Fairey Firefly Aircraft — Frankston

We have the GPS marks and details for what might be two or three Fairey Firefly Aircraft wreck sites near Frankston on the eastern side of Port Phillip.

Firefly Aircraft 1
Latitude: 38° 6.004′ S   (38.100067° S / 38° 6′ 0.24″ S)
Longitude: 145° 0.714′ E   (145.0119° E / 145° 0′ 42.84″ E)

Firefly Aircraft 2
Latitude: 38° 5.980′ S   (38.099667° S / 38° 5′ 58.8″ S)
Longitude: 145° 0.692′ E   (145.011533° E / 145° 0′ 41.52″ E)

Firefly Aircraft 3
Latitude: 38° 6.091′ S   (38.101517° S / 38° 6′ 5.46″ S)
Longitude: 145° 0.627′ E   (145.01045° E / 145° 0′ 37.62″ E)

Fairey Firefly Aircraft — Frankston

The GPS marks for the Firefly Aircraft 1 and Firefly Aircraft 2 are 50 metres apart. It might be two separate aircraft, or the broken up and separated parts of a single aircraft. We simply don't know.

The GPS marks for the Firefly Aircraft 1 and Firefly Aircraft 3 are 205 metres apart.

If you have further information about these aircraft wreck sites, please contact us.

Heritage Warning: Any shipwreck or shipwreck relic that is 75 years or older is protected by legislation. Other items of maritime heritage 75 years or older are also protected by legislation. Activities such as digging for bottles, coins or other artefacts that involve the disturbance of archaeological sites may be in breach of the legislation, and penalties may apply. The legislation requires the mandatory reporting to Heritage Victoria as soon as practicable of any archaeological site that is identified. See Maritime heritage. Anyone with information about looting or stolen artefacts should call Heritage Victoria on (03) 7022 6390, or send an email to

Boon Wurrung / Bunurong country
Boon Wurrung / Bunurong country

Traditional Owners — This dive site is in the traditional Country of the Boon Wurrung / Bunurong people of the Kulin Nation. This truly ancient Country includes parts of Port Phillip, from the Werribee River in the north-west, down to Wilson's Promontory in the south-east, including the Mornington Peninsula, French Island and Phillip Island, plus Western Port. We wish to acknowledge the Boon Wurrung as Traditional Owners. We pay respect to their Ancestors and their Elders, past, present and emerging. We acknowledge Bunjil the Creator Spirit of this beautiful land, who travels as an eagle, and Waarn, who protects the waterways and travels as a crow, and thank them for continuing to watch over this Country today and beyond.


Firefly Aircraft 3 Location Map

Latitude: 38° 6.091′ S   (38.101517° S / 38° 6′ 5.46″ S)
Longitude: 145° 0.627′ E   (145.01045° E / 145° 0′ 37.62″ E)

Datum: WGS84 | Google Map
Added: 2012-07-22 09:00:00 GMT, Last updated: 2022-04-25 09:27:56 GMT
Source: GPS
Nearest Neighbour: Firefly Aircraft 1, 205 m, bearing 38°, NE
Fairey Firefly Aircraft.
Crashed: 20 July 1947.
Depth: 18 m.

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 of GPS, Google Earth, or unknown.


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