Nazaré Canyon
The Nazaré Canyon is a submarine canyon just off the coast of Nazaré, portuguese Oeste region, in the eastern North Atlantic Ocean. It is the largest submarine canyon in Europe, reaching depths of about 5,000 metres (16,000 ft) deep and a length of about 230 kilometres (140 mi).
The canyon is being studied as part of the EU HERMES project using a remotely operated vehicle. The project is investigating the specialized canyon ecosystems, sediment transport and deposition, and the way in which the canyon influences and is affected by local ocean circulation.