HMS Perseus (N36)

British submarine lost to a mine off Kefalonia in December 1941. Acoustic and ROV research documents the wreck, and Blue Manta describes it on sand off the island’s south coast. The marine survey reports 52 m water/seabed depth. This is not a measured whole-wreck top-to-bottom range. Blue Manta separately describes a dive route reaching about 50 m; no single maximum-depth field is assigned. The reviewed archive position has not been independently corroborated for the named wreck; map coordinates are left unset. Sources (reviewed 19 October 2026): https://www.mdpi.com/2571-9408/3/4/67 https://www.bluemantadiving.gr/hms-perseus/ https://www.healthyseas.org/blog/protecting-the-seas-with-gamomats-support-the-perseus-shipwreck/ https://www.healthyseas.org/blog/our-main-event-in-kefalonia-greece-and-the-hms-perseus/