Is an area of water to the south of a line joining Point Nepean and Observatory Point. This area is extremely popular even though it is fairly shallow, and is an ideal location to anchor and have lunch in calm conditions, when it is rough outside. Many divers take advantage of the location to snorkel or scuba in depths ranging from 0-7m; the lack of depth however is more than compensated for by the extensive bottom terrain.
The bottom is littered with small kelp covered bommies across its entire length. Most of the bommies are found at the western end and in approx. 3-4m of water, however in some places the rocks dry at low tide, which can make it tricky for the boat skipper to get close to shore. A good lookout is essential if you don't want to buy a new boat propeller every time you visit. Extensive ledges can be found under the bommies in the centre of the bay, providing a haven for many species of reef fish and shellfish. The area between the bommies is usually sandy with occasional areas of weed.