a town of Switzerland, on the Aar, near the lake of the same name, in the canton and 16 miles S.S.E. of Bern. It is walled, and contains many fine buildings, among which are an old church, a town-hall, an old and a new castle. In the vicinity there are much-esteemed baths. Thun is thronged with visitors and tourists in summer, but the permanent population is only 3379. The lake is about 10 miles long by 2 wide, and 1896 feet above the sea-level. It is traversed by the river Aar, and its shores are lined with fine gardens and villas. The scenery is very fine, and steamers ply daily on the lake.