The Manacles The Manacles The Manacles (, meaning "church stones") () are a set of treacherous rocks off The Lizard peninsula in Cornwall. The rocks are rich in marine wildlife and they are a popular spot for diving due to the many shipwrecks. Traditionally pronounced "mean-a'klz" (1808), the name derives from the Cornish "meyn eglos" (church stones), the top of St Keverne church spire being visible from the area. The rocks are in Falmouth Bay and extends about 1 nautical mile east and south-east of Manacle Point, on the east coast of the Lizard Peninsula. The nearest village is Porthoustock. The reef
Castro Rocks Seals also frequent Mowry Slough, Brooks Island, Yerba Buena Island, and Mare Island. The seals at this location have high levels of toxic pollutants including the DDT, PCBs, PBDEs, PFOS, PFOA, and mercury. Castro Rocks Castro Rocks are several rocks in Richmond, California protruding from the waters in San Francisco Bay between Castro Point and Red Rock Island.The rocks lie almost directly under the Richmond-San Rafael Bridge (I-580). The rocks are named after Don Víctor Castro a local rancho-era land owner. Castro Rocks are the home of many harbor seals, which lie on them to rest and sunbathe. The rocks