Johnson South Reef Johnson South Reef Johnson South Reef (; ), also known as Chigua Reef in China, Gạc Ma Reef in Vietnam and Mabini Reef in the Philippines is a reef in the southwest portion of the Union Banks in the Spratly Islands of the South China Sea. It is controlled by the People's Republic of China (PRC), but its ownership is disputed by the PRC, the Philippines, Taiwan, and Vietnam. Johnson South Reef lies adjacent to the Vietnamese-controlled Collins Reef (also known as Johnson North Reef) which lies to the northwest. It is naturally above water only at low tide. Prior
Artificial reef Territory. The surfing reef Temple reef is off the coast of Pondicherry, India constructed of fully recycled materials such as concrete, rocks, trees, palms, and iron bars. It is located at a depth of . Pearl of Dubai is an art-inspired Lost City off the coast of Dubai. The site encompasses five acres and is located at the World Islands. At a depth of , the site is designed as an ancient lost city, complete with temples and statues using regional design cues from 800 BC. Underwater Chocolate Hills is an artificial reef project undertaken by Spindrift Reefs Dive Center