Three-peaked rock island 200 m off Thumbs Point at the mouth of Fortescue Bay, ringed by a steep wall that drops past 40 m, with kelp, sponges, sea whips and large schools of butterfly perch.
Visibility at The Thumbs
Visibility at The Thumbs typically ranges from 12 to 25 metres, though it shifts with swell, wind and recent rainfall. Year round in most seas; winter for the clearest water generally offers the best conditions for diving here.
Air, gear and guides near The Thumbs
Browse dive shops in Hobart for fills, hire gear, servicing and guided dives at this site.
Region: Tasman Peninsula, TAS
Skill Level: Advanced
Depth: 15-40 m
Water Temperature: 11-17 °C
Visibility: 12-25 m
Best Time to Dive: Year round in most seas; winter for the clearest water
Marine Life: Butterfly perch, southern hulafish, velvet leatherjacket, rosy wrasse, longfin pike, bastard trumpeter, silver sweep, blue-throated wrasse, banded morwong, barber perch, longsnout boarfish, Johnston's weedfish, feather stars, sea urchins, blacklip abalone, sponges, sea whips, gorgonians, pyrosomes, salps
Hazards: Depth, the wall drops past 40 m; surge and strong currents that are hard to predict; shallows only calm in flat seas; safety stop and boat pickup in current; usually no dive guide in the water
Facilities: Boat access only, from Pirates Bay (Eaglehawk Neck) or the Fortescue Bay boat ramp; air fills and hire at Eaglehawk Dive Centre.