Right next to the Les Gets ski resort: the same slopes you’d ride down in winter, walked up in summer instead. A very easy hike, and the summit view is genuinely great: Mont Blanc and the Chablais on one side, the ski slopes of Morzine and Les Gets on the other.
The one downside: the main path just follows a ski slope, which isn’t the most interesting way up. There are other paths worth exploring instead. Park at the Col de l’Encrenaz to start.
Also tracked on Strava: