The Adelaide is a former warship scuttled in April 2011 as an artificial reef. Since its sinking, the wreck has proven its worth by providing homes to numerous fish species and is an ideal research area for local Marine Science students from the nearby university.

The reef slope is made up of small boulders and rocks. Once you hit ~13m, the reef will drop off more sharply to ~18m. It is in this area and along the sand line of the reef that the magnificent sponge gardens can be found.

You can start your dive from either the boat ramp or the second ramp on the Terrigal Dive side of the Haven. The area underneath the moored boats is sand flats and seagrass. The seagrass in the Haven is a much-overlooked habitat with some of the most interesting critters.

The Skillion Cave is a fantastic shore dive. . The cave is not really a cave as such but rather a very large crevice in a reef wall that a large boulder has fallen into to form a “cave“. This dive can only be attempted on a calm day which makes it an all to rare treat from shore unfortunately

The Valiant was a small tug that sank off Barrenjoey Headland in the early eighties. This site has attracted divers from all over as a small, safe wreck in less than thirty meters of water.

The cave is just over the edge at a point where two cliffs come together. This dive site is part of an extensive reef system running north to south with a few great dive sites along it.

Lying just over three nautical miles east off Terrigal, the SS Galava wreck is an impressive dive. Due to the depth at 51 meters, this dive is suitable for experienced divers only.

Located three nautical miles offshore from the Entrance township, this sizeable reef of approximately 30 hectares holds a vast array of dive sites from shallow reefs droopier to 20 metres. further sites to deeper water, shallow caves and channels.

Beginner dive site - perfect for open water courses. Boat ramp/shore entry. Wall dive with a sandy bottom. Max 14m (deepest as you head to the point of the wall).

The Bird Island Nature Reserve is a protected nature reserve located near Lake Munmorah - diving off this island is a great experience. Sandy bottom with rocky out crops to explore less than 20m depth.