The SMS Cöln is a wreck dive site near Kirkwall, United Kingdom, in the Atlantic Ocean. The 115-metre ship was scuttled and sank in 1919. It lies at depths of around 20 to 36 metres and is protected as a scheduled monument. It is described as the most intact of all. Divers are welcome to enjoy and respect the wreck, but removing artefacts from it is illegal. Corals and fans are resident, with grey seals and moray eels occasionally seen.