Refine your search for walks in Lac Léman
La Dôle from Les Dappes

Without doubt, the shortest path up to the summit of La Dôle (1677m altitude) from the French side of the border. In good weather, the views are breathtaking and go on for over 250km: from the Swiss Alps to Mont Blanc and on to the Vanoise and the Ecrins, all of this with plunging views down over Geneva and its lake.
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.
Tour d'AÏ
The Tours d'Aï and Mayen are twin peaks visible from afar. The Tour d'AÏ is slightly higher than its neighbour, and also visited more frequently. It's a progressive climb which offers an aerial tour at the very end. Amazing views of Lac Léman, le Chablais, les Dents du Midi and the Mont Blanc massif from the summit.
Tour de Mayen

The Tours d'Aï and Mayen are twin peaks visible from afar. The Tour de Mayen is slightly lower than its neighbour, not as busy and provides a more wilderness setting. The climb is progressive with two stages, the Chalets de Mayen and Segray Lake. Just beneath the summit, a very clear view of Lac Léman, les Diablerets, le Chablais, les dents du Midi and the Mont Blanc Massif.
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.