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Top 10 Best Dive Knives

You want a dive knife that is sharp, strong and resistant to corrosion. If you're a scuba diver you should consider a blunt or chisel tip knife to reduce the chances of stick injuries. If you're a spearo you'll opt for a pointed tip knife so that you can easily dispatch your catch. Some divers also like to have a line cutter and/or shears, typically in addition to their dive knife.

Unsure as to what type of Dive Knife you need? Take a look at our guide to Buying a Dive Knife.

How do you know which one is right for you? Here at The Scuba Doctor, we've done the hard work for you when it comes to deciding what dive knife suits you best. Our selection of the Top 10 Best Dive Knives available will enable you to know you have the right tool for the job.


Wreck Dive Wreck Dive | Boat access Boat access

Inside Port Phillip Open Water Rated Wreck Dive Site

Two-Masted Wooden Schooner, Coal Hulk | Max Depth: 8 m (26 ft)

Level: Open Water and beyond.

The Isa (aka Iza), which lies in Swan Bay, on the Bellarine Peninsula, at the south-western end of Port Phillip, is significant as one of a few Asian built wrecks in Victorian waters.

Isa Shipwreck History — Built in 1847

The Isa (aka Iza) was a wooden two-masted schooner of 50 tons, built in 1847, at Howrah, Calcutta, India, on the dimensions of length [[Units?v=58&u=ft&long=1], beam 14.5 ft (4.42 m)], and a draught of 7.8 ft (2.38 m).

The Isa traded between Melbourne and Geelong from the 1850s. The last located record of this trade is in 1877. The schooner Isa foundered in Corio Bay on 4 June 1871, but was later refloated. The Marine Board Inquiry found charge of wilful damage against the master William Veale, not sustained. William Cowper, a well known lighter agent, and James Balfour were the owners at the time.

Isa Sinking — 1928

The Iza (sic) was listed as powder hulk in 1938 Survey of West Channel (Larkin 1938). In spite of an exhaustive search, no record of the Iza has been located. A wreck of that name appeared on J.P. Larkin's Survey of the West Channel, 1938 and it seems almost certain that he mis-spelt the name.

The evidence suggests that the powder hulk was the Isa, which was broken up in 1928 when the register closed and part of the remains used for a powder hulk.

See also, Heritage Council Victoria: Isa, and
Australian National Shipwreck Database: Isa.

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

Wathaurong (Wadda-Warrung) country
Wathaurong (Wadda-Warrung) country

Traditional Owners — This dive site is in the traditional Country of the Wathaurong (Wadda-Warrung) people of the Kulin Nation. This truly ancient Country includes the coastline of Port Phillip, from the Werribee River in the north-east, the Bellarine Peninsula, and down to Cape Otway in the south-west. We wish to acknowledge the Wathaurong 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.


Isa Location Map

Latitude: 38° 14.270′ S   (38.237833° S / 38° 14′ 16.2″ S)
Longitude: 144° 41.286′ E   (144.6881° E / 144° 41′ 17.16″ E)

Datum: WGS84 | Google Map
Added: 2012-07-22 09:00:00 GMT, Last updated: 2022-05-14 15:32:18 GMT
Source: GPS
Nearest Neighbour: Will O the Wisp, 1,211 m, bearing 109°, ESE
Two-Masted Wooden Schooner, Coal Hulk, 50 ton.
Built: Calcutta, India, 1847.
Sunk: 1928.
Swan Bay, Bellarine Peninsula.
Depth: 8 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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