Margaret Brock Reef

Location: Cape Jaffa
State: SA
Diver Qualification: Open Water
Average Depth: 8mtrs
Max Depth: 12mtrs
Average Visibility: 8mtrs
Access Type: BOAT
Directions: Launch from Cape Jaffa, Head out towards the lighthouse, anywhere around the lighthouse is all reef, for a couple of km's in any direction.
Description: Quite a pretty dive site, but most people dive here for one reason alone. Crayfish.

The area within .55nautical miles of the lighthouse in any direction is a total marine reserve, where nothing can be taken. Outside that, the crayfish abound. On one weekend, a group of divers caught 7 crayfish above 4kg, including two 5kg+ monsters.

There are ledges everywhere, with lots of gorgonias, sponges, and such like. Quite an interesting area. The occasional weedy and leafy seadragon have been seen here also.

A couple of things to look out for. Be VERY careful picking the weather. If the swell is up, it turns the water into a dishwasher in no time. There is also "killer kelp" in abundance. These kelp trees grow to 20mt+, and can entangle you quite easily.

If you're not into catching crays, the dive under the lighthouse is absolutely sensational.