Stony Point is the southern terminus of the Frankston railway and the mainland port for the French Island and Phillip Island ferries, a working pier at the end of Stony Point Road at Crib Point, in the shadow of HMAS Cerberus and the Crib Point fuel jetty. The Scuba Doctor lists it as a 5–9 m pier dive for Advanced divers, the rating reflecting not depth but tide: the pier stands on the edge of Western Port's main western channel, and the currents around the point and through the pylons are strong enough that the site is diveable only at slack water, preferably at the end of the flood when the incoming Bass Strait water is at its cleanest. Within that window the pier offers a deeper and more current-swept version of the Western Port pier habitat – pylons with hydroids, sponges and mussels, a bottom of sand, shell and seagrass, and fish that ride the tide: squid hanging in the shadow of the deck, King George whiting, Australian salmon, silver trevally, yellow-eye mullet, flathead and snapper, with rays and the occasional draughtboard shark on the bottom.

Only the public right-hand side of the pier is available; the left side is set aside for anglers and the ferry berth is a no-go area, so the dive is a narrow out-and-back along one row of pylons. Tankerton Jetty on French Island, 4 km east across the channel, is the companion site reached by the ferry from here. Stony Point is not pretty and its visibility is rarely better than a few metres, but for divers who enjoy the discipline of tidal diving it offers genuine current-swept life inside a bay, easy parking and a general store across the road.

It suits experienced divers with tide tables and a flag, and nobody else.

From Frankston–Flinders Road turn onto Stony Point Road at Bittern and follow it through Crib Point to its end at the pier, 75 km from Melbourne; the terminus of the Stony Point railway is beside the car park. Park in the boat-ramp car park or the nearby parking areas and walk to the beach at the end of the road, less than 100 m. Enter from the beach and dive the public right-hand side of the pier; the left-hand side is reserved for anglers and the ferry berth is off limits.

Exit onto the beach. There is a general store across the road and public toilets at the ramp.

Stony Point sits on the main western channel of Western Port and strong tidal currents run around the point and through the pier on every tide; the source restricts diving to slack water, ideally at the end of the incoming flood, when the water is cleanest and the current drops for perhaps 20–30 minutes. Wind matters less than tide, but easterly and south-easterly winds put a chop across the channel onto the pier. Visibility is estuarine – a few metres at best – and falls after rain.

Ferry movements are frequent and the working pier is busy with anglers; dive early, at slack, and stay within the public side.

Enter from the beach 20 minutes before high-water slack, descend beside the inner pylons on the public side and work out to the head at 7–9 m, using the pylons for shelter and reference. Turn as soon as the ebb is felt, return along the pylons to the beach and exit; do not surface in the ferry berth or channel, and carry a flag throughout.

No regular operator; independent divers and clubs with tidal-diving experience. Ferries to French Island and Cowes use the pier throughout the day.