Eastern side of the great mercury islands, a nice spot for some easy diving. the middle of the bay is the deeper part with huge kelpie reef systems. A lot of area to explore.

The western side of the Great mercury island, also a safe haven for boats to park and stay overnight. The scallop beds have been shut down until at least 2023 due to it being in very poor condition.

Northern side of the mercs, is exposed so southerly swell and wind, Cathedral bay itself is an awesome dive site for anyone, rocky reef surrounding the bay with a sandy bottom with broken kelpie reef all throughout in the middle. The pins and outer edges of cathedral have some wicked walls and boulder areas.

Never fail is a dive for the more advanced or expert levels, a pin that is exposed from every direction with currents to match, yet one of the most entertaining dives to do.

Can be a popular fishing and diving spot on GMI, a lot of boats pass by as well so be wary. always have your dive flag up. Being a popular spot can be under a bit of pressure over summer.

sandy bottom with short shallow broken reef, great for lunch or beginners. the sandy bottom offers an excellent opportunity to see rays mooching about.

Can have strong currents on the northern side of the rock, Usually very exposed to wind and swell. dives average between 7 to 20m. Easy to navigate.

On the Southern end of great mercury island Peachgrove has a stunning beach and dive sites to match. Being able to cater to just about every level of diver.

This site is on the north western side of the great mercury islands. This dive is one for advanced divers, the wall is full of live but can drop on down to 25-30m

South east corner of great mercury island is a nice and long stretch of divable reef, shallowest part is in the middle but in general some excellent diving when you can get in.Extremely exposed to most wind and swell directions