R.J. Cleveringsluizen

The R.J. Cleveringsluizen is a lock complex in Lauwersoog consisting of three structures with twelve sluice channels in total. This system regulates water flow between the inland lake Lauwersmeer and the North Sea using gates, pulleys, and control devices.

The lock system was built in 1969 as part of the Lauwerszee closure project to protect the coastline and create new land. It received its current name in 2007 to honor the chairman R.J. Clevering.

The complex represents Dutch mastery in controlling water and shows how communities have learned to live alongside natural forces through practical engineering. Visitors can observe the heavy machinery and gates that daily maintain the balance between freshwater and saltwater systems.

The complex can be viewed from outside, and visitors can observe the lock operations from public areas around the site. Timing your visit with tidal changes allows you to see the water movement in action between the two water systems.

The sluices follow a special schedule during spring nights to support the migration of glass eels and other fish species from the North Sea. This adjustment shows how the technical system works together with natural processes to allow wildlife and human management to coexist.

Location: Noardeast-Fryslân

Location: Het Hogeland

GPS coordinates: 53.41028,6.19111

Latest update: December 14, 2025 13:04