Ocean Free offers you the opportunity to experience the wonders of the Great Barrier Reef as it was intended. Ocean Free is the only operator in Cairns to offer a personal sailing reef and island tour. Sail, snorkel and scuba dive aboard personalised tours with fun and professional crew. Explore Green Island in the Great Barrier Reef Marine Park with Ocean Free. Whether or not you have previous snorkel or dive experience , let us show you the incredible underwater world of the Great Barrier Reef and this stunning tropical island paradise. Sail Ocean Free for that personal touch.