The Sea Scouts Jetty lies around the corner from Table Rock in Beaumaris Bay, a small timber jetty with a concrete ramp used by the Beaumaris Sea Scouts, and it gives the easiest walk-in entry on this stretch of coast. It sits just outside the eastern boundary of Ricketts Point Marine Sanctuary, so it is technically not a sanctuary dive, but the habitat is continuous with Table Rock a couple of hundred metres west. The interest here is the transit under the cliffs: the Beaumaris sandstone bluffs rise straight from the water and successive collapses have left a boulder field on the bottom in 3-5 m, with slabs, gaps and ledges that hold more fish than the flat reef platforms to the north-west.

Moonlighters, old wives and zebrafish school in the ledge areas, dusky morwong and scalyfin work the algae, blennies and cardinalfish fill the cracks, octopus live under the slabs and rays settle on the sand between. The jetty pylons themselves add sea squirts, sponges and the odd seahorse. It is a great site for beginner snorkellers and night divers because the ramp makes entry and exit trivial and the cliff line is an unmistakable navigation reference.

Most divers use it as one end of a one-way dive from Watkins Bay around Table Rock, or as a sheltered alternative when the point is too rough; the cliff gives shelter from northerlies and the bay is calmer than the open reef flats in a north-westerly. Parking is in Rennison Street with a road crossing, and the Bay Trail walk to the ramp is a pleasant 250 m.

Park in Rennison Street, Beaumaris (no beachside parking) and cross Beach Road carefully. Walk east along the Bay Trail past the Table Rock steps to the Sea Scouts hall and jetty, about 250 m; the concrete ramp beside the jetty gives an easy walk-in entry and exit. The dive runs west under the cliffs toward Table Rock or east along the boulder field beneath the Beaumaris cliffs.

Exit at the ramp. Toilets are on the eastern side of Table Rock Point, a short walk back.

Best with north-westerly to easterly winds; the cliffs give some shelter from the north. Avoid strong south-easterly through south-westerly to westerly winds, which put chop straight into Beaumaris Bay. Dive just before high tide for the clearest water.

Visibility 3-8 m, best in the cooler months, reduced after rain. No swell. Boat traffic from Beaumaris Motor Yacht Squadron to the east is heavy at weekends; a flag is essential.

Walk in at the ramp, descend beside the jetty at 2 m, head west along the boulder-strewn bottom under the cliffs at 3-5 m toward Table Rock Point, explore the ledges, turn at half gas and return along the same line to the ramp.

No commercial dive boat – shore site dived independently and by Melbourne dive shops for training and night dives (Scuba Culture in Cheltenham is the closest shop and uses the sanctuary regularly; Aquability and Melbourne Diving Services run club nights). Marine Care Ricketts Point runs guided snorkels in summer and Parks Victoria licensed tour operators run snorkel tours.