Passantenhaven De Uutwiek is a small, welcoming transit marina located in Oldeberkoop, an old village in southeastern Friesland, and serves as a well-equipped stopping point along the Turfroute.

The harbour accommodates around 20 boats, with all berths fitted with lighting and shore power.

Facilities include drinking water, a waste and bilge water pump station, a sanitary building with showers, toilets, a washing machine and dryer, a chemical toilet disposal point, waste containers, and picnic tables.

Visitors may also borrow the harbour's white bicycles free of charge. The marina sits in a quiet, friendly atmosphere well suited to those who want to combine boating with walking or cycling.

The surrounding parklands and nature areas offer good walking, while nearby villages such as Appelscha, Beetsterzwaag, and Gorredijk are easily reachable by bike. Mooring fees apply at De Uutwiek, though access to the Turfroute itself is free.