Lucerne is only 45 minutes (with the railway) from Zurich. There is the beautiful Lake Lucerne, which has mountains around it and a famous old town. It is not so overcrowded as Zurich and much more relaxed. You can swim in the lake either in the lido (for a fee) or the equally beautiful "Ufschütti" (for free). The "Ufschütti" is near the railway station (ask for the way, many people in Lucerne speak English). You can also make boat trips on the lake, climb one of the many mountains around the lake or visit the old town.
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