Onsevig Havn is a private harbour on the north side of Lolland. It has 70 berths with a depth of 2.5 metres nearly throughout. The harbour was originally an active fi shing harbour. Since stocks of fi sh have declined in Denmark’s waters there are only a few fi shing boats left now. However, commercial fi shing is gradually returning to the area and four trawlers now offer their services for hobby anglers.   Swimming is possible from the breakwater and the water quality is good, although the temperature is generally not more than 2 to 4°C. The reason for this is the shallow water on the northern side of Lolland.