Dolomieu Point is a headland on the Tasman Peninsula's high-cliffed east coast near Fortescue Bay. The Marine Life Network guide lists it as a boat dive in about 20 m, with large boulders and rock crevices under a high cliff, colourful sponges, small fish and invertebrates. The topography is typical of the dolerite coastline: blocks that have fallen from the cliffs over thousands of years lie jumbled at the base, creating gaps, overhangs and crevices.

Where these are shaded, encrusting sponges, ascidians and other invertebrates grow in bright patches, and small reef fish shelter in the cracks. The shallower cliff base is covered in brown algae and kelp, with wrasse, leatherjackets and magpie morwong, and rock lobsters are likely in the larger holes. The site is not part of the regular charter rotation and is mostly visited by private boats, which makes it a quiet option for experienced divers exploring the coast between Fortescue Bay and Waterfall Bay.

It is a moderately deep dive rather than a deep one, and the boulder field provides plenty to look at within recreational limits. Documentation is sparse and historical, so treat the details as a guide and expect to do some exploring. Because of the high cliffs, there is no shore exit and a boat cover is essential.

Fortescue Bay makes a convenient base: launch at first light, dive Dolomieu Point while the morning is calm, and follow it with an easy shore dive in the bay's kelp in the afternoon. Divers who enjoy exploring lesser-known sites with a sounder and a sense of adventure will find this coast has many similar boulder reefs that rarely see a diver.

Boat access only. Launch at the Fortescue Bay boat ramp (turn off the Arthur Highway just south of Taranna onto the 12 km gravel Fortescue Road; national park entry pass required) or at Pirates Bay, Eaglehawk Neck. Dolomieu Point is on the cliffed coast near Fortescue Bay, a short run from the Fortescue ramp; the exact mark is not published, so use a sounder to find the boulder field at about 20 m.

The Tasman Peninsula faces the full Southern Ocean and Tasman Sea. South-westerly to south-easterly groundswell and strong easterlies are what cancel trips: operators generally need westerly or north-westerly winds with swell under about 1.5-2 m for the open-coast sites. Prolonged southerly swell pushes surge deep into the caves and gutters and churns visibility; after a big blow allow two or three days to settle.

Late summer and autumn (February-May) bring the most settled windows and the clearest water; winter can be glassy between fronts but fronts arrive every few days. Easterly and south-easterly swell closes it; best on calm westerly days.

Descend to the boulder field at about 20 m under the cliff, then zig-zag through the boulders and crevices looking for sponges and invertebrates. Rise to 10-12 m along the cliff base and ascend on an SMB.

No regular operator; private boats and club divers. Eaglehawk Dive Centre may use sites on this coast when conditions suit.