The balcony road from Vaujany to Alpe d'Huez (think it comes out by the church in Huez village itself if memory serves) is spectacular, but you'll need a head for heights.
If you do Alpe d'Huez then continue beyond the air strip and do the Col de Sarenne, then drop down to the dam at Lac du Chambon.
One of my favourite routes in that area is the dead end road to La Berade, it's a stiff climb in places but the sense of isolation you get up there is worth it. There is a cafe at the end, which was open last year.
The balcony road from Vaujany to Alpe d'Huez (think it comes out by the church in Huez village itself if memory serves) is spectacular, but you'll need a head for heights.
If you do Alpe d'Huez then continue beyond the air strip and do the Col de Sarenne, then drop down to the dam at Lac du Chambon.
One of my favourite routes in that area is the dead end road to La Berade, it's a stiff climb in places but the sense of isolation you get up there is worth it. There is a cafe at the end, which was open last year.