Meet the site
Larkin Cove is the middle of the three small quartz-sand coves between Refuge Cove and Waterloo Bay, an 80 m beach of coarse white sand with seagrass in the deeper water and granite on its flanks. Scuba Doctor lists it at 2–25 m and identifies the primary attraction precisely: low granite swim-throughs and caves at 7 metres depth, the principal one 12 m long. The boulders here have settled to form a series of tunnels and roofed gutters just below the kelp line, big enough for a diver to pass through comfortably but low enough that fins disturb the weed and silt on the floor – the listing warns that silt is readily stirred up during exploration, so buoyancy and fin technique matter more than on the open walls elsewhere. Inside and around the swim-throughs the rock carries sponge, ascidian and bryozoan patches with bullseyes, blue devils and the occasional bearded cod or conger in the dark; outside, the reef is typical eastern Prom kelp and boulder with wrasse, morwong, leatherjackets, old wives, cuttlefish and draughtboard sharks, and the seagrass off the beach has stingarees, flathead and pipefish. Beyond the cove the granite continues down to 25 m. Larkin Cove is a boat site – the overland trek from the walking track is too long for scuba – and is almost always dived as part of a Port Welshpool trip with Brown Head Pinnacle 500 m to the north-east and Bare Back Cove 1 km south, the three together making a full day on this stretch of coast. It suits Advanced divers who enjoy shallow overhead-free swim-throughs and macro subjects, and it is a good sheltered option when the pinnacle is too current-affected.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Larkin Cove is recorded as Reef in Wilsons Promontory. The listed access is boat. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Overhead environments
- Ask whether the plan stays entirely in open water. A wreck or cave listing is not permission or training to enter.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Larkin Cove suitable for my certification?
The record lists Advanced Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Larkin Cove through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Sponges, ascidians and bryozoans in swim-throughs, bullseyes, blue devils, bearded cod, conger eels, wrasse, morwong, leatherjackets, old wives, cuttlefish, draughtboard sharks, stingarees, pipefish, seagrass and kelp
Location
Small quartz-sand cove between Refuge Cove to the north and Bare Back Cove to the south on the eastern side of Wilsons Promontory, 500 m south-west of Brown Head Pinnacle.
Facilities nearby
Departure from Tidal River beach ramp, Port Welshpool or Sandy Point; No air fills at Tidal River or Port Welshpool; the nearest compressor is roughly 100 km away (Melbourne's south-east or Inverloch/Leongatha area by arrangement) – bring all cylinders or a portable compressor
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
scubadoctor.com.auscubadoctor.com.auscubadoctor.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.