Diving and Snorkelling in Australia is undoubtedly one of the most unique experiences you can have. With over 35,000km's of magnificent coastline, an endless array of marine life, superb diving in the tropical waters of the Great Barrier Reef and northern Western Australia as well as brilliant temperate diving in the southern states. Available are day trips, live aboard, and certification and training courses, many companies allow and cater for both diving and snorkeling during the same trip.