Apo Reef of the nearest coast of the Philippine island of Mindoro. It is separated from main island by the Apo East Pass of the Mindoro Strait. Politically, the reef lies within the jurisdiction of the Province of Occidental Mindoro in Region IV-B of the Philippines and more accurately of the Municipality of Sablayan. Tourism activities are administered by local government of Sablayan and the local office of the Department of Environment and Natural Resources (DENR). Apo Reef is roughly a triangular coral atoll formation approximately from the north to the south tip, and from east to west. It is separated by
Osborne Reef Osborne Reef Osborne Reef is an artificial reef off the coast of Fort Lauderdale, Florida, constructed of concrete jacks in a -diameter circle. In the 1970s, the reef was the subject of an ambitious expansion project utilizing old and discarded tires. The project ultimately failed, and the "reef" has come to be considered an environmental disaster—ultimately doing more harm than good in the coastal Florida waters. In 2007, after several false starts, cleanup efforts began when the United States military took on the project. This cleanup exercise provides the military with a real-world training environment for their diving and recovery