Maybe, maybe you need a permission if you are a Polish or German cititzen but thats no laws that apply on other nationalities....For exampel, I cant dive on the Estonia (as Swedish cititzen) but Germans can, like they did with Jutta Rabe.......The polish navy visited us last year, and they had nothing to say. This year they just watched us occationally from a very far distance.......Picture is from the bridge on Goya, depth is about 60 meters.......