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
Molasses Reef Molasses Reef Molasses Reef is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. This reef is within a Sanctuary Preservation Area (SPA). An unmanned reef light is located near the reef. On August 4, 1984, the motor vessel "Wellwood", a 122-meter freighter carrying pelletized chicken feed, ran aground on Molasses Reef. The total destruction from the grounding included 5,805 square meters of living corals and injury to 75,000 square