Ah, Town Lend-Lease Destroyers. They aren't bad to deal with when you know what they really are; American Clemson/Wickes Class destroyers flying the British Ensign. If you know a Clemson, you know a Town. Their turning radius for their size is huge. They maneuver like pigs. Getting in a blind spot is not too hard and the acoustics gear is not hard to fool. However, your problem was being only at 60 meters when they found you. That is way too shallow. With only 166 meters of depth, there are no thermals to hide under. I am always hypervigilant to the point of paranoia in shallow water. If I can't red-line my boat in a flash, I am concerned. You were
very lucky when you hit bottom. You can thank that old acoustics gear they have for not finding and finishing you off.
Conversely, Clemson/Wickes/Town class destroyers are, in my opinion, the easiest to jump and sink, with careful planning.