Looking for tours on the Great Barrier Reef? The Great Barrier Reef can be accessed from several towns along the Queensland coast. The three main tourist hubs with a large variety of accommodation and tour options include The Whitsundays, Cairns and Port Douglas. Whether you are an experienced snorkeler and diver, a novice or even a non-swimmer there are tours available so that everyone can witness the beauty of the Great Barrier Reef. Choose between day cruise to reefs, islands resorts or pontoons with a variety of activities to suit everyone. View a selection of the tours available from Cairns, Port Douglas and The Whitsundays below.