A small concrete cherub once marked the main entrance to this hidden cave off Moreton Island. While the guardian has since disappeared, this underwater world remains to be discovered by the adventurous diver.

The Marietta Dal was a 7500 tonne liberty ship built in the USA in 1944 and is one of the most interesting shipwrecks off Brisbane. On May 15 1950, the 140 metre long ship was carrying a cargo of sulphur, oil, tractors and other general cargo when it ran aground on Smith Rock.

The Cementco was a 67 metre long hopper barge that worked in Brisbane’s Moreton Bay for many years transporting fossilised coral to be used in cement production.

Moreton Bay Marine Park is home to Brisbane’s only true coral reef and fully protected marine sanctuary, Flinders Reef. Scuba dive among an amazing array of marine life and coral, perfect for any diver.

Located on the northern side of flat rock, this site is suitable for all levels of divers with a small cave sitting at 10m and the reef dropping to a max depth of 30m. Turtle cave is a great site for drift diving around the edges of Flat Rock and seeing large pelagic life that frequents the coastline.

An advanced site located on the ocean side of Flat Rock, Blue Corner ranges in depth from 25 to 45m. Suitable for technical or experienced recreational divers only. Amazing site to see big sharks and all manner of pelagic life including whales. Well known for it’s population of Bull and Sandbar Whaler Sharks.

A deeper site for advanced divers, Shark Alley is a seasonal aggregation zone for endangered Grey Nurse (sand tiger) sharks. Being further out to sea, it is also a great place to see whales and other large pelagic marine life. Max depth is 28m with the reef rising to 12m on either side of the alley.

Flat rock is located approximately 2.5 nautical miles north of point lookout. The Nursery is an amazing dive site located on the southwestern corner of the reef at Flat Rock.

Located on the western side of Flat Rock, with depths ranging from 12m to 35m, The Pinnacles is suitable for Advanced divers only. It is a good spot for turtles, rays, and migrating humpback whales.

It is best to do this shore dive a half hour before high tide, that is when visibility will be the best and current will be slack. Watch out for boat traffic, have a dive flag up, and carry an SMB with you at all times. Make sure you have a surface watch. Watch out for fishermen as there could be a lot of lines in the water.