Located 24 nm from Cairns, just beyond Fitzroy Island, Sudbury Cay is a breathtaking sandy cay surrounded by turquoise waters, fringing coral reefs, and abundant marine life. Pure Snorkelling holds one of only two exclusive permits allowing visitors to step onto this untouched paradise, making it a truly special destination.
Aerial shot of Sudbury Cay located 24 km from Cairns, Queensland an best location for snorkeling
On a calm summer’s day, the cay is a picture-perfect postcard—brilliant white sand, crystal-clear shallows, and vibrant coral gardens teeming with colourful reef fish and giant clams. We anchor close to the cay, and when conditions allow, we can beach the vessel directly onto the sand, so guests can step straight onto the island via our specially designed front ladders.
Sudbury Cay is a sensitive location with important bird nesting and roosting grounds and significant cultural heritage values
Sudbury Cay is one of only four sand cays accessible from Cairns, and its expansive fringing reef provides the perfect environment for snorkelling in calm, shallow waters. Whether you’re floating over coral gardens, relaxing on the pristine beach, or simply soaking in the uninterrupted ocean views, Sudbury Cay is an unforgettable part of the Great Barrier Reef experience.
Come explore one of our favourite reef sites—a place where nature’s magic unfolds beneath the waves. No crowds. Just pure snorkelling.