There were no U boots in ijmuiden, these are Schnellboot bunkers. The first one was destroyed by 617 squadron RAF using Tallboys, the second bunker was never completed after the 617 squadron bombings. Festung ijmuiden, the only town with that designation in all of the Netherlands, only had Schnellboots and later the 2 man midget submarines Seehund.
There were no U boots in ijmuiden, these are Schnellboot bunkers.
The first one was destroyed by 617 squadron RAF using Tallboys, the second bunker was never completed after the 617 squadron bombings.
Festung ijmuiden, the only town with that designation in all of the Netherlands, only had Schnellboots and later the 2 man midget submarines Seehund.