Gosen Canal

The Dämeritzsee and Seddinsee are both navigable, with the Seddinsee providing a link to the River Dahme and the Oder-Spree Canal, and the Dämeritzsee providing a link to the Müggelspree reach of the River Spree and to the Flakensee.

The principal reason for the construction was to provide an alternative route for commercial shipping between Berlin (via the Dämeritzsee) and the Oder-Spree Canal (via the Seddinsee) during the 1936 Summer Olympics, when the more normal route via the Langer See was closed in order to use the regatta course at Grünau for the Olympic canoeing and rowing events.

[2] Another explanation is that the canal was built to bring the coal from Königs Wusterhausen to the Klingenberg power station in Berlin-Rummelsburg.

It has no locks, but is crossed by a single bridge (which is planned to be rebuilt by 2022[4]), with a maximum clearance of 4.3 metres (14 ft).

[1][2] Besides seeing considerable sightseeing and leisure traffic, the canal today also forms a link in a commercial navigation route from the limestone workings at Rüdersdorf, which reaches the Flakensee by a lock at Woltersdorf.