Get involved Dive Trails HMS Colossus Dive Trail In 2012 and 2013 the trail was extended by three dive stations. The trail consists of numbered observation stations around the site and a waterproofed underwater information booklet which guides divers around the site. Explore the dive trail here and see the results of the multibeam sonar survey here The wreck of the HMS Colossus is designated under the Protection of Wrecks Act 1973 which requires that you be in possession of a visitors’ licence in order for you to physically visit site. If you dive the Colossus with one of the local dive charter boats operating in the Isles of Scilly you will have a visitors’ licence organised for you. The charter boats also have copies of the underwater guide which you can use during your dive. Explore the dive trail here and the results of the multibeam sonar survey here For further information about the site visit the CIMAS webpages.