Apo Reef Light Apo Reef Light The Apo Reef Light was a historic lighthouse built on Bajo Apo Island in Apo Reef Natural Park. The park is located in the middle of Mindoro Strait, west of the province of Occidental Mindoro, in the Philippines. The station was established to warn ships of the dangerous shallow reefs in that part of the strait. The original tower was the tallest lighthouse tower ever erected in the Philippines. The 118-ft (36.0-m) tall structure was an iron skeletal tower with a central cylinder, reinforced by a hexagonal frame and topped with the lantern room with two levels
Environmental threats to the Great Barrier Reef Environmental threats to the Great Barrier Reef The Great Barrier Reef, the world's largest reef system, stretching along the East coast of Australia from the northern tip down to the town of Bundaberg, is composed of roughly 2,900 individual reefs and 940 islands and cays that stretch for 2,300 kilometres (1,616 mi) and cover an area of approximately . The reef is located in the Coral Sea, off the coast of Queensland in northeast Australia. A large part of the reef is protected by the Great Barrier Reef Marine Park. According to the 2014 report of the Australian Government's Great