Musée et Jardins botaniques cantonaux
Time Out says
Explore this garden's 6,000 plants spread over terraces, with a splendid view from the top.
A peaceful spot for a stroll, the city’s botanical gardens sit on the Montriond ridge, once a glacial moraine and now a grassy knoll sporting far-reaching views of the lake and mountains. The gardens themselves house 6,000 plants spread over terraces and in hothouses, and there's a small museum with a programme of regularly changing exhibitions. Once you’ve explored, head to the top of the hill and you’ll easily find a spot of grass to yourself from where to gaze at the mountains and contemplate life.