Point Roadknight is the long, low calcarenite headland that shelters Anglesea's main beach from the south-west, and its north-eastern side, facing back toward the township across a 700 m east-facing beach, is the more accessible of its two dives. The Scuba Doctor describes it as a diving and snorkelling site with many interesting options, and the geology explains why: the point is made of soft dune limestone that the sea has eroded into reefs, gullies and ledges in shallow water, so that within a hundred metres of the shelf there are channels to swim along, undercuts to look beneath and ridges canopied with kelp. Depth runs from 1 m on the platform to about 9 m off the outer reef.

The Soapy Rocks, a notoriously slippery outcrop, bound the beach to the north. Under the crayweed and bull kelp the ledges hold sponges, ascidians and bryozoans, and the fish are the Surf Coast community of blue-throat wrasse, magpie perch, leatherjackets, scalyfin, zebrafish, old wives, sweep and boarfish, with Port Jackson sharks and southern rock lobster in the holes, weedy seadragons along the weed edge and rays on the sand. Because the point faces east, the northern side is a little protected from south-westerly swell and is the better bet of the two when there is a small residual sea, and it is the natural choice for snorkellers and less experienced ocean divers on a calm day.

The car park at the yacht club and boat ramp is large, close and free, which makes gearing up easy, and Anglesea's cafes are five minutes away. The usual Surf Coast warning applies in full: when the swell is up the area is highly hazardous, the rocks are treacherous underfoot, and the dive is for experienced divers who have looked at the water first.

From Anglesea take the Great Ocean Road south-west, turn left onto Eighth Avenue and follow it to Melba Parade and the Point Roadknight car park beside the boat ramp and Anglesea Motor Yacht Club (free, large). Gear up and walk 100-150 m along the beach to beach marker 95W, then out onto the rock shelf and enter from the platform edge. Exit on the same shelf.

The southern side is documented separately and shares the car park.

Only attempt it when conditions are very calm with little wind, flat seas and no swell; The Scuba Doctor calls it a highly hazardous area when conditions are not perfect. Point Roadknight points east, so the northern side is best with light offshore winds from the west through south-west and is a little more sheltered from south-westerly swell than the southern side, but any swell wraps around the point. The rocks are slippery and a hazard to walk on.

Autumn and early winter give the most usable days; visibility 5-15 m when clean. Experienced divers and snorkellers only.

Enter from the shelf at marker 95W on a flat day, swim out over the shallow calcarenite reef at 2-4 m, follow the gullies and ledges seaward and around toward the tip of the point at 5-9 m, turn at half gas well short of the tip, and return along the same gullies to the shelf.

No regular commercial operator – dived independently by experienced Geelong and Surf Coast divers and clubs on the rare flat days; Bay City Scuba (Geelong) is the nearest shop. Snorkel tours operate under Parks Victoria licence in summer.