Great Blue Hole
The Great Blue Hole is a giant marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll from the mainland and Belize City. The hole is circular in shape, across and deep. It was formed during several episodes of quaternary glaciation when sea levels were much lower. Analysis of stalactites found in the Great Blue Hole shows that formation took place 153,000; 66,000; 60,000; and 15,000 years ago. As the ocean began to rise again, the cave was flooded. The Great Blue Hole is a part of the larger Belize Barrier Reef Reserve System, a World Heritage Site of the United Nations Educational, Scientific and Cultural Organization (UNESCO).
Paul Hosie
Hosie was born on 30 June 1967. He gained his Cave Diving qualification in 1997. Over the past ten years, Hosie has been involved in the discovery and mapping of over 10,000m of new cave passages in Australia. This has included the exploration of remote cave diving sites in Australia including Kija Blue Sinkhole in Australia's Kimberley region (ADM Issue 24/2006 ). Hosie has been recognised as a member of the World Exploration Team of Divers in Advanced Diver Magazine and was the recipient of the 2003 Oztek Diver of the Year Award.  In 2007, Hosie was awarded the National Speleological Society (USA) Cave Diving Section - Exploration Award along with his team members for the exploration of Kija Blue Sinkhole  Hosie has been active in the caving community in WA. He is currently exploring the area of Eneabba to find new caves and pay homage to Jeff Butt, who was the inspiration for the inaugural Australian Speleological Federation Award for Exploration that he was awarded in 2007 from the Australian Speleological Federation.