Corinella Jetty is a small pier on the eastern shore of Western Port, in the village that was the site of Victoria's short-lived 1826 military settlement at Settlement Point, and it is listed by Scuba Doctor as a 3–8 m pier dive for Advanced divers with a candid note that visibility is generally poor and the site appeals primarily to fossickers searching the bottom. That is a fair summary. The jetty is a robust concrete and timber structure with an L-shaped end and a lower landing, sitting beside the Corinella boat ramp and the French Island barge terminal, and the water around it is the turbid, tide-driven water of Western Port's eastern arm – rarely more than a few metres of visibility and often less.

What it offers is a sheltered, easy-access pier with reasonable pylon growth (sponges, ascidians, mussels and tubeworms), the usual pier fauna of crabs, shrimp, blennies, leatherjackets, cowfish and the occasional seahorse, rays and flathead on the mud and sand, and a bottom that, because the jetty and its predecessors have served the village since the nineteenth century, yields old bottles, crockery and fishing relics to divers who search carefully. The name Corinella is recorded as an Aboriginal word meaning running water, which is apt: the tide runs hard past the jetty and the dive has to be timed for the slack at the end of the flood. It is not a site anyone would travel far for on its own, but for divers living in the south-east suburbs or Bass Coast it is a quick, low-effort dive when the coast is blown out, a place to practise low-visibility and current skills, and a reliable relic hunt.

It sits within the Western Port Ramsar wetland and adjacent to seagrass beds that are important nursery habitat, so divers should avoid disturbing the bottom more than necessary and take only rubbish and genuine relics.

Corinella is 105 km (about 1 hr 30 min) from Melbourne: Bass Highway to Grantville, then Corinella Road to the village and down Peters Street to the foreshore. Park in the car park by the boat ramp and jetty; the carry is under 50 m. The jetty is a sturdy concrete and timber platform that runs out, turns right and continues parallel to the shore for about 20 m before descending to a lower platform, which is the easiest entry and exit point.

Fly a flag and stay clear of boats using the ramp and the ferry berth.

Tidal currents along the eastern shore of Western Port are strong and Scuba Doctor advises diving at slack water, preferably at the end of the incoming flood tide, using the Corinella Ferry Terminal tide predictions; the window is short. The site is sheltered from ocean swell but exposed to westerly and south-westerly wind chop across the bay, which stirs the mud and reduces already poor visibility to nothing; a calm day or an easterly is best. Water is clearest on winter neaps after dry weather.

Diveable year-round in principle; rarely worth it after rain.

Enter from the lower platform at slack high water, drop to the bottom at 3–5 m and work systematically along the pylons and out to the 8 m channel edge in front of the jetty, searching the bottom with a torch. Turn as soon as the ebb begins to run and work back along the pylons to the platform. Keep a hand on the structure in the current and surface only under the jetty, clear of the ramp and ferry berth.

No operator; occasional club and independent divers, mostly bottle and relic fossickers.