Michaelmas Cay

16°34’56.2″S 146°01’09.1″E

Michaelmas Cay is a sand cay located 40 kilometres from the coast of Cairns.  This cay has a great reef around the proximity of the cay.

Close to the Outer Reef, it’s the biggest of a trio of neighbouring coral sand cays. It features excellent snorkelling opportunities and supports the early learning of exploratory divers. It is vegetated with a beach conducive to paddling the waters among reef fish.

There are 14 dive sites at this reef location offering a range of different underwear adventures.


Michaelmas Cay provides a sanctuary to twenty-four species of sea birds.  Twentyseven thousand migratory birds visit this sand cay.   The middle of the sand cay has vegetation that covers an area of 1.5 hectares of the island.

Marine Life

This cay has an abundance of green sea turtles and giant clams.  Scuba divers and snorkelers can see the brightly coloured tropical reef fish as well as reef sharks.

Head North from Michaelmas Cay to Hastings Reef or south to Upolo Cay