Bermagui's Blue Pool is a large ocean rock pool at the base of the cliffs north of town, reached by a long flight of stairs from a cliff-top car park. It is mainly a swimming spot, but it is known among underwater photographers for nudibranchs. Peter Fuller's dive log describes a 50-minute snorkel in a tidal pool reputed to be good for nudibranchs, with a maximum depth of 2 m, a Hincksia algal bloom in the shallow end, around eight nudibranch species feeding on it and a gloomy octopus that tried hard not to be photographed.

The pool has a mix of rock, weed and sand, with shallow and deeper sections. Waves wash in at high tide and bring in plankton and small animals, and the pool's sheltered water lets algae grow that nudibranchs and sea hares graze. Small fish such as blennies, gobies, juvenile wrasse and leatherjackets live along the edges.

This is not a scuba site; it is a snorkel and macro-photography stop. It suits anyone who can swim, and it is excellent for photographers willing to search slowly. The stairs are long, so pack light. Fuller also mentions Tathra Wharf as a nearby alternative for a proper dive. The Blue Pool is part of Bermagui's coastal walk, and the view from the cliff top is worth the visit on its own. Check swell forecasts, since big seas at high tide can wash over the pool edge. There are no lifeguards. Early morning visits avoid the swimmers. Weekdays are quieter still.

In Bermagui, follow Scenic Drive north from the town centre to the Blue Pool car park on the cliff top. A long flight of stairs leads down the cliff to the pool; carry light gear only, as snorkelling rather than scuba is the practical option. There are change facilities at the top.

The pool is refreshed by waves at high tide.

The pool is sheltered from normal waves but can be swamped by large swell at high tide, which makes it dangerous. On calm days it is placid. Algal blooms (Peter Fuller noted Hincksia in the shallow end) reduce clarity at times but also attract nudibranchs.

Water temperature follows the ocean.

Snorkel slowly around the edges and the deeper end of the pool, looking closely at the algae and rock for nudibranchs and octopus. A camera with a macro lens and a light is ideal. Keep fins off the algae and rock to protect the animals.

No operator; visited by swimmers and snorkellers, and by underwater photographers looking for nudibranchs (Peter Fuller's dive log).