Nurse Rock

Sunreef dives it from 14 to 22 metres, and the shape of the dive comes from the boulders at the bottom of the site, with small swim-throughs running between them. There is no other landmark out here, so groups work the rock itself and keep it in sight rather than ranging off over the sand. Sunreef's own line is that every dive here is different depending on the conditions that day.

The reason to book it is the sharks. Through the winter months, July to October, grey nurse sharks aggregate on the site, which Sunreef describes as one of Australia's newest grey nurse aggregations and the reason the rock was renamed from Wobby Rock. In summer the shark changes: this is the site Sunreef sends divers to for wobbegongs, which lie up under the rock rather than cruising in mid-water.

The rest of the dive is the resident life. Large schools of surgeon fish pass over the rock, with turtles, rays, cuttlefish, eels and tropical reef fish through it. In the cooler months humpback whales migrate past, and Sunreef tells divers to keep an eye out for them and to listen for their singing while they are still on the bottom.