Assuming that the OP is not familiar with Switzerland, here are some amendments to this helpful post in case the OP is consulting guidebooks:
Lac Leman is Lake Geneva in English.
Zweissimen = Zweisimmen
Gaastad = Gstaad
Spiesz = Spiez
Luzern (Lucerene, French spelling) - French spelling is Lucerne, as is the English spelling.
Lake Luzern - English is Lake Lucerne. (German is Vierwaldstättersee.)