Set sail from Port Douglas to Mackay Cay for a full-day sailing and snorkeling experience on the Outer Great Barrier Reef. Expect guided snorkels with a marine biologist, glass-bottom boat tours, and time on pristine coral cay beaches.
More ways to explore the area's outdoor wonders
Morning light slides across Port Douglas Marina as a low-slung catamaran slips from the wharf, canvas filling and the ocean pulling the vessel seaward. Passengers trade the rainforest silhouette of the Daintree for a horizon of blue; the wind becomes the day's engine and the reef ahead a promise.
Difficulty
moderate
Duration
9 hours
Fitness Level
Moderate fitness: able to move around a multi-level vessel, climb ladders into the water, and snorkel for short periods.
Wildlife
History
The Great Barrier Reef is an ancient biological structure; local Kuku Yalanji communities have long-standing cultural ties to the coastal waters and islands.
Conservation
Trips contribute to reef management fees and operators follow strict no-touch, no-take rules; use reef-safe products and follow guide briefings to minimize impact.
Reserve your spot on the Outer Reef Mackay Cay Sail & Snorkel Adventure from Port Douglas today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Use reef-safe sunscreen
Apply biodegradable sunscreen before boarding and reapply as instructed to protect coral and marine life.
Be a confident swimmer
Snorkel participation requires unassisted swimming; crew may restrict snorkeling for safety if concerned about ability.
Time your travel for calmer seas
Morning departures often have better visibility and gentler swell for snorkeling and sailing comfort.
Pack a light jumper for the boat
Even in the tropics, wind can cool the deck; a thin fleece or windbreaker is useful after sun exposure.
Reef-safe sunscreen
Protects skin and prevents chemical damage to corals.
summer
Swimsuit and rashguard/lycra suit
Provides sun and jellyfish protection during snorkeling.
summer
Wetsuit or thermal top
Offered by operators in cooler months and helps with warmth during extended swims.
winter
Waterproof dry bag
Keeps phone, wallet and spare clothes dry on deck and ashore.