Canal lock Kiel Holtenau, canal lock in Kiel, Germany

The Kiel-Holtenau lock is a port facility at the entrance of the Kiel Canal between Kiel Fjord and the canal entrance. It regulates water levels between the North Sea and Baltic Sea using large chambers that ships pass through.

The facility was built in the late 1800s as part of the Kiel Canal to make Schleswig-Holstein an important trading point. Since its completion, it significantly improved shipping traffic between the North Sea and Baltic Sea.

The lock bears the name of the Holtenau district and connects two different seas together. Visitors watch ships from around the world pass through daily, shaping local maritime activity.

The lock lies at the eastern end of the Kiel Canal, where it meets the Kiel Fjord in the Holtenau district. Visitors reach it by bus or on foot along the canal-side paths; viewing platforms stand on both sides of the lock chambers. Ships pass in convoys, so waiting between passages is normal.

The two lock chambers opened in 1895 and 1914; the older one measures 125 metres long and 25 metres wide. Ships drop or rise about 10 metres between the Baltic and the canal's level. Look for the small chamber built for sport boats beside the large commercial one.