Bremer Bay's coast is a series of granite headlands, coves and small islands, and beyond the famous seadragon trail at Little Boat Harbour there is a wider set of sites around Fishery Beach and the islands off the bay entrance, including Glasse Island.

The underwater habitat is typical of the Bremer coast: granite boulders and gutters draped in kelp, with sponges, sausage corals, gorgonian fans and patches of plate coral in shaded areas, and sand and seagrass between reefs. Bremer Bay's community resource centre highlights an abundance of sponge life, nudibranchs, tube worms and basket stars, weedy and leafy seadragons, morwong, damselfish and harlequin fish, with occasional seals, stingrays and dolphins. The islands add Australian sea lions and bigger fish such as blue groper and samson fish.

Fishery Beach is an easy, sheltered shore option for snorkellers and divers staying in town, while the islands give more adventurous boat dives on calm days. Both are best explored with local knowledge, as sites shift with wind direction.

Bremer Bay is also the base for orca expeditions to the Bremer Canyon from December to April, and a stay of several days allows divers to combine the town's shore sites, a boat dive or two, and a day on the canyon. Tank fills, hire gear and up-to-date site advice are available from Bremer Bay Dive, and the town has a supermarket, fuel and accommodation ranging from caravan parks to resort units.

Bremer Bay is about 180 km (2 hours) north-east of Albany and 500 km (5-6 hours) south-east of Perth via the Albany Highway and Borden-Bremer Bay Road, or via the South Coast Highway and Bremer Bay Road. Air fills, hire gear and guided dives are available from Bremer Bay Dive in town. Fishery Beach is a few minutes' drive from the township toward the Bremer Bay boat harbour; park at the beach and enter from the sand, following the granite at the ends of the beach.

The islands at the bay entrance, including Glasse Island, are reached by small boat from the Bremer Bay boat harbour (5-15 minutes). Confirm current access and conditions with Bremer Bay Dive.

Bremer Bay's headlands face several directions, so there is usually a sheltered site; Fishery Beach and the inner bay are protected from south-westerly swell but exposed to easterlies. The islands at the bay entrance are more exposed and need swell under about 1.5 m. Summer and autumn mornings are best.

From Fishery Beach, follow the granite reef edge at 6-12 m and return along the shallows. At the islands, anchor in the lee, explore the boulders and gutters at 10-20 m and finish shallow.

Bremer Bay Dive guides selected shore sites; island sites by private boat or special arrangement.