South East Point is the corner of Wilsons Promontory, the granite peninsula crowned by the 1859 lighthouse, and Parks Victoria's park note lists it among the Prom's premier sites for experienced divers. Scuba Doctor lists it at 5–70 m and describes steep underwater walls plunging to 70 metres, with boulders, caves and swim-throughs to explore, current swept, with the typical kelp and soft corals – and adds that divers may find historical artefacts discarded from lighthouse operations over 160 years. The dive is the eastern counterpart of Skull Rock: a sheer granite face dropping from the kelp fringe into very deep water, buttressed by giant fallen blocks that form caves and swim-throughs on the way down, all in the path of the tidal stream that sweeps around the bottom of the Prom.

The cover is as rich as anywhere in Victoria – sponge gardens, zoanthids, gorgonians and sea whips, soft corals in the caves – and the fish are the deep-wall community of butterfly and barber perch in clouds, boarfish, morwong, blue devils, bullseyes in the overhangs, and kingfish and salmon working the current line. Fur seals haul out on the point. Because the wall goes to 70 m and the current is strong, this is a Deep/Technical-rated dive that recreational divers approach with a firm depth floor and a live boat, on slack water, on a rare calm day, after a boat run of an hour and a half or more from Port Welshpool; it may go years between dives.

Its neighbour 770 m north, the Lighthouse Landing, is the gentler dive and the anchorage. For a diver who wants the most dramatic wall on the eastern Prom, with the lighthouse standing 100 m above the boat and the sense of being at the very corner of the continent, South East Point is it.

Boat only. Launch at Port Welshpool (sealed all-tide ramp, jetty and trailer parking on Corner Inlet, 2.5 hours from Melbourne) and run south through Corner Inlet's marked channels and out past Rabbit Island down the eastern Prom coast – about 30–40 km and 60–90 minutes to Sealers/Refuge Cove, longer to Waterloo Bay and South East Point. The coast is exposed to easterly and southerly swell and has no facilities; carry fuel, radio and all air, and plan around the weather window and Corner Inlet tides.

South East Point is the far end of the eastern run – about 45 km and 1.5–2 hours from Port Welshpool – or 15 km from Tidal River around South Point. It is a live-boat dive at slack water; there is no safe anchorage on the tip itself, and the Lighthouse Landing 770 m north gives the nearest shelter.

Calm seas, no swell and no wind are required, with light offshore westerly to northerly winds acceptable and moderate to strong onshore south-westerly to north-easterly winds ruled out. The point is current swept and must be dived at slack water because of the depths and strong currents; tidal streams around the corner of the Prom are among the strongest on the coast. Autumn calms only; a full-day settled forecast is essential given the boat distance.

Drop from a live boat onto the wall top at 10–15 m at slack, descend the face to a planned floor (30–40 m recreational; the wall continues to 70 m), and work along the point through the boulders, caves and swim-throughs, rising as gas is used. Turn on a third of gas or NDL and ascend on an SMB well clear of the rock with a deep stop and full safety stop; the boat must follow the markers.

Rated Deep/Technical; wall suits trimix/rebreather divers; recreational floor 30–40 m with EAN32.

No dive charter operates at Wilsons Promontory. Sites are dived from club and private trailer boats – Dive La Trobe, VSAG, Melbourne University Underwater Club and Dive Victoria Group run occasional camping-and-diving trips – launching at Tidal River (beach launch, permit/key from Parks Victoria), Port Welshpool or Sandy Point. Wilsons Promontory Cruises (Port Welshpool) runs sightseeing cruises to Skull Rock and the islands but no diving.