A mock medieval castle on an island in the Spree houses this Cold War–era youth club turned cultural center. It's especially popular in summer, when you can ride your bike down the river to chill in the beer garden or rent a boat. In winter, regional food is served inside the "castle." Organisers also run eclectic events ranging from open-air cinema and concerts to parties and poetry slams.
In winter the cafe serves Sunday brunch from noon to 6pm. It’s just off Treptower Park in the southern district of Treptow, about 1km northeast of S-Bahn station Plänterwald.
