Note to self: visit Vercors region when the Alps get "old".
Do it sooner rather than later! But I'd probably not want to stay on Vercors itself, as the weather can be 'interesting', even in the summer: you need to pick your days carefully. There are several 'must ride' roads: Col de Rousset, Gorges de la Borne, Route de Presles, les Gorges du Nan, le Canyon des Ecouges, Col de la Bataille... all quite breathtaking. And if you're into WW2 history, the place is awash with it. Stunningly beautiful, and also moving.