Refine your search for walks in Lac de Tanay
Le Grammont

Passing through Tanay preserved site, and its lake, you'll climb to the summit offering a unique view point over Lac Léman and a panoramic view over the surrounding mountains.A busy hiking trail with steep slopes but without any technical difficulty.N.B. The calculated height difference is over estimated, it's actually closer to 1000 metres.
La Grande Jumelle

A not too busy hike up to a summit offering a vast panoramic view. A relatively challenging route with some aerial passages requesting a certain sense of itinerary at times. The beginning of the hikes passes through Tanay site and its lake.
Walks near Lac de Tanay
The Border Ridge and Pointe de Recon from le Morclan
A pleasant walk along the border ridge from the Morclan chair lift. Variations are possible (and described) to give more ascent. Opportunities for great views across the mountains in the Chatel Area and into Switzerland, including the Montreaux end of Lac Leman.