• Badebus from Lochhausen runs every 20 minutes from about 11am to 7pm on good swimming days only, from the S-Bahn station (Deutschland-Ticket valid); check badebus.com before you set off
• Parking fills fast on hot days, and so do the grill zones, so come early or arrive by bike or train
• Wasserwacht lifeguards staff the station on weekends and public holidays from 10am to 7pm during the lifeguard season

Langwieder See is an 18-hectare swimming lake, up to 8 meters deep, and the largest of the three Langwieder lakes alongside Lußsee and Birkensee. Wide lawns around the shore leave room for picnics and ball games, and a restaurant with a beer garden sits by the water.

Barbecues are allowed only in the signed grill zones. Divers have a marked area at the north end, away from the swimming lawns.