The tunnel was designed by civil engineer Peter Marcuse and completed in under two years.
It was built to allow residents easy access to the lakeside resorts and public baths located on the opposite shore.
The structure survived World War II despite its strategic location near the Spree bridges.
The tunnel features a characteristic curved design that follows the bathymetry of the riverbed.
It is entirely non-motorized, meaning only pedestrians and cyclists are permitted to use the passage.
The interior is maintained with functional lighting but lacks elaborate decorative features, emphasizing its utilitarian design.
The Spreetunnel Friedrichshagen is a pedestrian and cyclist tunnel running 120 meters beneath the Spree River in Berlin. Completed in 1927, it connects the residential neighborhood of Friedrichshagen with the recreational area of Köpenick. The tunnel serves as a vital transit link for commuters and leisure cyclists traveling between the city and the surrounding forest trails. It is constructed from reinforced concrete and reaches a depth of approximately 8.5 meters below the riverbed. The structure is characterized by its tile-lined walls and rounded, industrial architectural profile. It provides a direct, weather-protected route between the Müggelpark and the northern bank. The passage is accessible 24 hours a day to the public, facilitating non-motorized traffic across the waterway. It remains one of the few functional historic underwater tunnels in Germany still serving its original purpose.
From the tunnel entrance looking down the length of the arched, illuminated passage.
Dismount your bicycle if the tunnel is crowded, as the narrow path creates congestion.
Expect a slight temperature drop inside the tunnel compared to the outdoor air.
Use the tunnel to connect your bike ride from Friedrichshagen into the extensive forest paths of the Müggelberge.
Do not attempt to enter with motorized vehicles or e-scooters that exceed standard bicycle regulations.
Cyclists should yield to pedestrians; do not obstruct the path for photos.
