all the trails marked black, red, blue etc.
If you don’t mind riding up hills* there’s some excellent stuff in the region not graded. Most of it is FFC marked though, and a google of “Bike osians” plus an IGN map or two would see you right. I guess a guide could make a better experience, but I like exploring 🙂
Helps to have a car to get around to stuff the other side of the valley etc. but there’s a fair bit from the town.
If you just want to ride off the lifts, as above it’s all marked.
*for some routes you probably want to actively like riding up hills, thems some big hills!