About Revisions U-171 Isle De Groix, France More Info Max Depth: 121-130ft/37-40m Entry Type: Boat Aquatic Life: Might See Something 3/21/2014 6:02 AM LatitudeAdjustment

U-171 is a boat accessible salt water dive site, located in Isle De Groix, France. The maximum depth is 121-130ft/37-40m.

Sunk at 1300hrs on 9 Oct, 1942 in the Bay of Biscay near Lorient, France, in position 47.39N, 03.34W, by mines. 22 dead and 30 survivors. Near Lorient and Isle de Groix at 40m depth.