Heron Island is a coral cay located near the Tropic of Capricorn in the southern Great Barrier Reef, north-east of Gladstone, Queensland, Australia, and north-north-west of the state capital Brisbane. The island is situated on the leeward (western) side of Heron Reef, a fringing platform reef of significant biodiversity, supporting around 900 of the 1,500 fish species and 72% of the coral species found on the Great Barrier Reef. During the summer months Heron Island is also home to over 200,000 birds including Noddy Terns and Mutton Birds. The island is about long and at its widest, giving an area of approximately . The highest point, near the western tip, is above sea level. A dune ridge along the southern shore rises some above sea level, lower dunes on the north-eastern side are only about above the sea. Heron Island and an extrapolated version of the research station are the scene of much of the first part of Arthur C. Clarke's The Deep Range. History There is no evidence of Indigenous presence or activity on Heron Island; it is over from the Australian mainland. The island was discovered on 12 January 1843 by a Royal Navy expedition comprising the corvette and the cutter Bramble. The expedition, commanded by Captain Francis Blackwood, was engaged in surveying the eastern edge of the Great Barrier Reef to map out detailed plans for safe passages within the reef. The island was named by Lieutenant Charles Bampfield Yule, the commander of Bramble. The island did not become inhabited until the early 20th century when a turtle cannery was established. The aim was to profit from the seasonal influx of green turtles, but the venture soon found it difficult to keep the business afloat. Other attempts at establishing fisheries were abandoned. In 1932 Captain Christian Poulsen, engaged in bringing fishing parties to the reef, realised the potential of the island as a tourist attraction. In 1936 he bought the lease of the island for £290. On 11 September 1943, the entire island was declared a National Park. Land use Heron Island Resort Heron Island Resort, operated by The Aldesta Group, is located in the north-west corner of the island. The resort is a popular getaway for scuba diving and snorkelling and accommodates up to 300 guests and 100 staff members. In March 2012 Heron Island Resort was featured in the BBC's nature TV series, Great Barrier