Broulee Island is a small nature reserve connected to Broulee Beach by a sand spit, midway between Batemans Bay and Moruya. The Marine Life Network lists it as a 20 m boat dive with rocky reef on the seaward side, boulders and drop-offs in the 10–20 m range and temperate marine life, noting that westerly weather is needed. The Nature Coast Marine Group lists the northern side as a sanctuary-zone snorkel site suitable for novices (though it involves a long walk). It describes porcupinefish, sandy habitat, seagrass lagoons suitable for children, kelp, luderick, yellowfin bream, drummer, red morwong and wrasses.

The seaward reef is the dive: large boulders and drop-offs covered in kelp above and sponges and sea squirts below, with gutters and ledges. Expect blue groper, red morwong, sweep, yellowtail and drummer, with wobbegongs, Port Jackson sharks and eastern blue devilfish under the ledges. Rays are common on the sand at the base of the reef. The sheltered northern side is gentler, with seagrass and kelp in shallow water.

The island suits divers with a boat on a calm westerly day, and snorkellers on the protected northern side. It is part of the Broulee area, which includes the popular shore-dive cave at South Broulee, documented separately. The sanctuary zone around the island prohibits fishing and collecting, so the fish are plentiful. Because the only dive description is brief, depths here are indicative. The island is a short walk from Broulee's cafés and surf club, which makes it an easy family outing on a calm day.

For the seaward reef, launch at the Tomakin boat ramp or the Moruya River ramps and run a few minutes to the outer side of the island. For snorkelling on the northern side, the Nature Coast Marine Group describes access from Heath Street via Bayside Street in Broulee and a walk of 200 m or more along the beach to the island. There are toilets and showers at Broulee Surf Club.

The island itself is a nature reserve.

The Marine Life Network notes the seaward side needs westerly weather; it is exposed to swell from the north-east round to the south. The Nature Coast Marine Group warns the northern side is not good for snorkelling if the swell is more than a metre. The best days are calm westerlies after a period of small swell.

Visibility falls after rain when the Moruya and Candlagan Creek run.

From a boat, anchor on the seaward side and follow the boulders and drop-offs between 10 and 20 m, returning shallower along the reef. Snorkellers on the northern side should stay in the seagrass lagoons and kelp close to the island.

Listed by the Marine Life Network as a boat dive; no regular charter. Private boats from Tomakin or Moruya; snorkellers visit the northern side independently.