About 20km south of Lenzburg is Wasserschloss Hallwyl, a ‘Water Castle’ so named because it is built in the middle of a river – a natural moat. It is, in fact, two modest castles joined by a bridge. Walking paths wind southwards towards Hallwilersee, a peaceful lake that can be crisscrossed by ferry.
A half-hourly S-Bahn (between Lucerne and Lenzburg) calls in at Boniswil (Sfr6.60, 13 minutes from Lenzburg), from where it’s a 1km walk east to the castle (follow signs for Seengen).
