The Pineapples are a series of rock formations hugging the coast near the cliffs of Cape Labillardière on south-western Bruny Island. The Marine Life Network guide rates the site highly, describing very impressive rock formations good for exploration in 5-15 m, with small marine life in the rocks. It notes that this may be the site of the wreck of the Enchantress, a 376-ton barque armed with four guns that hit rocks off south-west Bruny in 1835 with the loss of seventeen lives, and that any remains are of interest to maritime archaeologists.

Any artefacts found must be left in place and reported to heritage authorities. The formations create a maze of gaps, faces and overhangs covered in brown algae and invertebrates, where wrasse, leatherjackets, morwong and rock lobster live. The area is remote and rarely visited; access requires a long boat ride from Dover across the southern channel or a rough beach launch near Cape Bruny.

Cape Bruny lighthouse, first lit in 1838, stands nearby on the headland and is one of Australia's oldest. This is a site for self-sufficient divers with a seaworthy boat, calm weather and a sense of adventure. Pair the dive with sheltered Quiet Bay nearby for a second dive, and allow a generous margin for the return run in case the wind rises.

Mobile phone coverage is patchy, so carry a VHF radio and leave a trip plan. The Cape Bruny lighthouse and its museum are well worth visiting on land after the dive.

Bruny Island is reached by the vehicle ferry from Kettering (about 35 km, 40 minutes south of Hobart via the Southern Outlet and Channel Highway) to Roberts Point on North Bruny; the crossing takes about 20 minutes and runs frequently, but book or queue early in summer. The Marine Life Network guide describes a fairly long boat ride from Dover, or a rough beach launch from Old Port Road near Cape Bruny. From Lunawanna follow Lighthouse Road/Old Port Road towards Cape Bruny.

The formations lie along the coast near Cape Labillardière; launching is difficult in strong southerly weather.

The south-west of Bruny faces the Southern Ocean and is exposed to southerly and south-westerly swell. Only dive on calm days with light northerly winds and minimal swell; the Marine Life Network notes launching and diving are challenging in strong southerly weather. Visibility can be excellent (10-15 m) in clean oceanic water on calm days.

Late summer and autumn offer the best windows, and a south-westerly change can make the return run dangerous, so watch the forecast closely.

Descend among the rock formations at 10-15 m and explore their gaps and faces, working back towards the shallows along the coast.

No regular operator; private boats from Dover or South Bruny only.