On 27 February 1916, Mecklenburg was on passage from Tilbury to Vlissingen when she struck a mine near the Galloper Light Vessel, laid four days earlier by the German minelaying submarine UC-7, commanded by Georg Haag. She sank in about 30 minutes, but all aboard were saved. Dutch records give 49 passengers and 63 crew rescued, while another heritage summary gives 49 passengers and 75 crew, so the safest public wording is "all passengers and crew were rescued". For divers, this is a superb wartime passenger-steamer story: a neutral Dutch mail boat, a North Sea minefield, a rapid sinking, and a wreck tied directly to the dangerous wartime routes between Britain and the Low Countries. Elegant ship. Ugly ending. Very Channel.