# Great Adventures Cruises > Great Adventures Cruises is Australia's most awarded Great Barrier Reef tour operator, based in Cairns, Queensland. Part of the Quicksilver Group, Great Adventures has operated on the Great Barrier Reef since 1988 (with company roots in Cairns reef tourism dating to 1986). It runs daily high-speed catamaran day tours from the Reef Fleet Terminal in Cairns to Green Island, a 6,000-year-old coral cay, and to its outer Great Barrier Reef activity platform off Norman Reef. Tours include snorkelling, scuba diving, glass bottom boat and semi-submersible coral viewing, the underwater observatory, Seawalker helmet diving, Scuba Doo underwater scooters, parasailing, helicopter flights, and island and reef experiences for swimmers and non-swimmers alike. Great Adventures is a leader in Great Barrier Reef eco-tourism and sustainability, and tours are guided by Marine Biologists and Master Reef Guides. ## Tour Pages - [Green Island Tours](https://greatadventures.com.au/tours-green-island): Day tours from Cairns to Green Island, a 6,000-year-old coral cay in the Great Barrier Reef Marine Park, just 45 minutes by catamaran from Cairns. Discover, explore and enjoy the island and surrounding reef. - [Great Barrier Reef Adventure](https://greatadventures.com.au/great-barrier-reef-adventure): Outer Great Barrier Reef day tour aboard the award-winning Great Adventures activity platform (pontoon). Snorkel, dive, and view the reef from the comfort of a stable offshore base. - [Green Island & Great Barrier Reef Adventure Combo](https://greatadventures.com.au/green-island-great-barrier-reef-adventure): The complete reef and island experience in one day, combining a Green Island visit with the outer Great Barrier Reef activity platform. Includes diving and snorkelling options. - [Fares and Prices](https://greatadventures.com.au/fares-and-prices): Current pricing for all Great Adventures Green Island and Great Barrier Reef tours, packages, and optional activities. Adult, child, and family rates. ## Green Island Activities - [Green Island Snorkelling](https://greatadventures.com.au/tours-green-island/green-island-snorkeling): Snorkelling tours off Green Island on the Great Barrier Reef. A safe and exciting way to see the reef's marine life. Equipment available; suitable for beginners. - [Green Island Scuba Diving](https://greatadventures.com.au/tours-green-island/green-island-scuba-diving): Scuba diving among the diverse marine life surrounding Green Island. No experience necessary; some medical conditions may prevent participation. - [Green Island Glass Bottom Boat](https://greatadventures.com.au/tours-green-island/glass-bottom-boat): View the coral gardens and marine life of the Great Barrier Reef off Green Island from a modern Coral Explorer glass-bottom boat, without getting wet. - [Green Island Parasailing](https://greatadventures.com.au/tours-green-island/green-island-parasailing): See the Great Barrier Reef and Green Island from above on a parasailing tour of the island. - [Self-Guided Green Island Eco Walk](https://greatadventures.com.au/tours-green-island/self-guided-green-island-eco-walk): Self-guided rainforest and coastal walk on Green Island, home to over 120 plant species and more than 55 species of birds. - [Green Island Beach Hire & Activities](https://greatadventures.com.au/tours-green-island/green-island-beach-hire-activities): Beach and water activities on Green Island including kayaking, beach volleyball, and personal sun lounge hire. - [Green Island Helicopter Flights](https://greatadventures.com.au/tours-green-island/helicopter-flights): Scenic helicopter flights over Green Island and the Great Barrier Reef aboard Nautilus Aviation helicopters. - [Green Island Seawalker](https://greatadventures.com.au/tours-green-island/seawalker): Seawalker underwater helmet-walking experience on the reef off Green Island, with no swimming required and without getting your hair wet. - [Marineland Melanesia](https://greatadventures.com.au/tours-green-island/marineland-melanesia): Green Island's Marineland Melanesia crocodile park and museum, home to over 15 crocodiles representing species found across Australia. ## Outer Great Barrier Reef Activities - [Great Barrier Reef Snorkelling Tour](https://greatadventures.com.au/great-barrier-reef-adventure/great-barrier-reef-snorkeling-tour): Snorkelling the Great Barrier Reef from the Great Adventures outer reef activity platform, exploring marine life around the pontoon. - [Great Barrier Reef Scuba Diving](https://greatadventures.com.au/great-barrier-reef-adventure/great-barrier-reef-scuba-diving): Scuba dive the outer Great Barrier Reef with experienced dive instructors from the activity platform. Introductory and certified diving available. - [Semi-Submersible & Underwater Observatory](https://greatadventures.com.au/great-barrier-reef-adventure/semi-sub-and-underwater-observatory): Explore the reef from an air-conditioned semi-submersible coral viewing vessel with informative commentary, plus the underwater observatory. - [Great Barrier Reef Scenic Helicopter Tours](https://greatadventures.com.au/great-barrier-reef-adventure/heli-tours): Scenic helicopter flights over the outer Great Barrier Reef and its coral formations, operated by Nautilus Aviation. - [Scuba Doo Underwater Scooter](https://greatadventures.com.au/great-barrier-reef-adventure/scubadoo): Drive your own Scuba Doo underwater scooter around the Great Barrier Reef. No experience necessary. ## Plan Your Trip - [Your Day](https://greatadventures.com.au/info/your-day): What to expect on a Great Adventures Green Island and Great Barrier Reef day tour, including itinerary and onboard experience. - [Information for Families](https://greatadventures.com.au/info/information-for-families): Family-friendly Great Barrier Reef and Green Island tours and experiences suitable for all ages. - [Activities for Non-Swimmers](https://greatadventures.com.au/info/activities-for-non-swimmers): Wet and dry reef experiences for non-swimmers and reluctant swimmers at Green Island and the outer reef activity platform. - [Reef Education & School Programs](https://greatadventures.com.au/info/reef-education-experience-packages): School excursion and education programs on the Great Barrier Reef, guided by Marine Biologists and Master Reef Guides and aligned to the Australian Curriculum. - [Great Barrier Reef Weather](https://greatadventures.com.au/info/great-barrier-reef-weather): Great Barrier Reef and Green Island weather reports and forecasts for Cairns. - [Island Webcam](https://greatadventures.com.au/info/island-webcam): Live Green Island webcam and current reef conditions. - [FAQs](https://greatadventures.com.au/info/great-adventures-faq): Frequently asked questions about Great Adventures Green Island and Great Barrier Reef tours, covering booking, what to bring, accessibility, weather, and your day. - [Enquire / Contact](https://greatadventures.com.au/enquire): Contact Great Adventures Cruises. Phone +61 (07) 4044 9944. Email res@greatadventures.com.au. Reef Fleet Terminal, 1 Spence Street, Cairns QLD 4870. ## About Great Adventures - [About Us](https://greatadventures.com.au/info/about-us): About Great Adventures Cruises, Australia's most awarded Great Barrier Reef tour operator. Cairns-based, operating since 1988, and part of the Quicksilver Group. - [About Green Island](https://greatadventures.com.au/about-green-island): Green Island is a 6,000-year-old coral cay in the Great Barrier Reef Marine Park, 27 km offshore from Cairns in Tropical North Queensland, with rainforest and surrounding coral reef. - [About the Great Barrier Reef](https://greatadventures.com.au/about-great-barrier-reef): Information about the Great Barrier Reef, the world's largest reef structure and marine park, comprising over 2,900 reefs and 900 islands. - [Eco-Tourism & Sustainability](https://greatadventures.com.au/info/great-barrier-reef-eco-tourism): Great Adventures' leadership in Great Barrier Reef eco-tourism and sustainability, using modern technologies to reduce environmental impact. - [Climate Action](https://greatadventures.com.au/info/great-barrier-reef-climate-change-action): Great Adventures and Quicksilver Group climate action and reef protection initiatives in the World Heritage Great Barrier Reef Marine Park. ## Optional - [Sitemap](https://greatadventures.com.au/sitemap.xml)