In reply to JuneBob:
Lower than you're climbing at, but th e two routes up from Les Bois (Via Corda Alpina and Voie Caline, pg109-112 in the Crag Clinch in Chamonix guide book) are cracking long route, 3c and 4a respectively. Short approaches, no lifts needed. The bookstore beside Channel shop or the Quecha store sell the books.
Todays heavy rain hasn't materialized, to be honest a lot of the forecast bad weather over the last week or so hasn't came about.