Sunken Island is a freshwater reef site located 500 metres from the shore. The topography features a shallow sandbar that rises from deeper water, creating an island-like formation. Divers and snorkellers can expect depths ranging from 1 to 41 metres, with an average depth of 9 metres. Visibility at the site varies between 5 and 15 metres. Access is by boat only, and the site is suitable for intermediate divers. Night diving is permitted, with typical dives lasting approximately 40 minutes. Hazards include boat traffic and potential entanglement. The site is well-regarded for snorkelling.

Higgins Lake offers a diverse freshwater environment featuring natural reefs, artificial structures, and a drop-off. Divers can explore depths ranging from 4 to 30 metres, with an average depth of 13 metres. The site is accessible via shore entry and is suitable for beginners due to the mild currents. Visibility typically fluctuates between 5 and 15 metres. Facilities at the site include parking, toilets, showers, changing rooms, and a rinse station. Night diving is permitted, and the site is open year-round. Divers should maintain high situational awareness regarding active boat traffic and monitor equipment closely to avoid entanglement risks.