Quote:
Originally Posted by mookiemookie
 Not quite. Shallow water meant death for a submerged U-boat. In sub warfare, depth is your friend. |
It meant death if the opponent could find and fix you in the first place. In shallow waters with fresh and salty water mixing, different temperature waters etc. it was very hard to find a submarine, even during 1980's. Moreover, if there's a lot of skerries etc. even schnorkeling wasn't as risky as in open waters.