Great Barrier Reef Snorkel Charter (Cairns)
Cairns is the gateway to the outer reef, and a proper small-group snorkel or dive charter — not a crowded pontoon barge — is the way to experience it. Venture Ashore's reef excursions leave early, travel further out to less-visited coral systems, and return you to the cruise terminal in time for all-aboard. One of Australia's great cruise excursions.