Sous Buen is a pleasant crag in a beautiful location overlooking the Doubs. It has single pitch routes in all grades from 3 to 8, up to 30m in length, many with the name written at the bottom. It is well bolted, has easy access,and as a result is very popular. Some of the older routes are polished, which can be a problem on hot days. There are however many newer routes still in good condition, and the crag gets the shade in the afternoon. There are not so many routes in the very hard grades, but the tough grading makes up for this!