The U-boat pool is located south of Świnoujście, at the confluence of Stara Świna and Świna (the Piastowski Channel), on the Karsibór island. The road to the town of Karsibór departs from road number 93. The pool is visible on the right side of the road, right after crossing the only bridge to the island. On the right side of the road, just after the sign informing about the entrance to the village, there is also an unmarked forest parking lot.
Base of German U-boats was established in 1942 where the former ferry harbor was. The ferry from the island of Uznam to the island of Karsibór ran from 1881. After the site was taken over by the German Navy, it was completely rebuilt. The entrance to the pool is located from where Stara Świna flows. From the very beginning, the marina served as a base for training and auxiliary ships. Among others, U-Boats from the 4th school fleet from Szczecin, armed KFK boats from KFK-Schulflottille and training torpedo boats (S-Boats) came there. In 1945, AFP artillery ferries from 8 flotillas were stationed in the pool. In 1944, the base on the island of Karsibór was supplemented with a barracks complex for naval cadets (Schnellboot-Lehr-Division). They practically trained on torpedo boats and KFK boats. The base used the wharves of the U-Boat base basin. The last U-boats were stationed at the base until mid-April 1945. Nowadays, you can admire the well-preserved mooring pier and the quays surrounding the pool. Near the pool, you can also see the ruins of a workshop hall and barracks. At the end of the concrete pier, at the confluence of Stara Świna and Świna (the Piastowski Canal), there is an active navigation sign - a stave, which is in the form of a small lantern painted red. Apart from the stave, all facilities are open to the public. You should pay special attention when visiting them.