Røst Reef

The Røst Reef (Norwegian: Røstrevet) is a deep-water coral reef off the coast of Lofoten, Norway. The reef was discovered in 2002. It extends over a length of about 35 kilometers (22 mi), and has a width of up to 3 kilometers (1.9 mi). The reef is generated by the coral Lophelia pertusa, and is the world's largest known Lophelia reef. It is also the world's largest known deep-water coral reef. The authorities have introduced regulations to protect the reef against trawling.