Hindenburg was a German icebreaker from the Imperialfleet.. In 1918 she served both as an icebreaker as well as a protection from mines, as the Åland waters at this time was heavily mined. Only a short distance from Eckerö Hindenburg hit a mine, which blew a big hole in the bow. The ship took in water rapidly and three men from the crew lost their lives, so please treat the wreck respectfully.