Tiny houses in Ardennes

Staying in a tiny house or treehouse in the Ardennes means settling into a forest that has been growing largely undisturbed since the last ice age — oak and beech canopy, river valleys that carved slowly through the hills, medieval ruins perched above the Semois and Ourthe. La Roche-en-Ardenne is a good base: an old market town with kayak hire on the river and a ruined castle above the slate rooftops. Bouillon's massive fortress, the finest in Belgium, is worth an afternoon.

The eco-lodge scene is dense and inventive — cabins built into hillsides, treehouses at canopy level, domes beside trout streams. Kayaking the Semois from Bouillon to Florenville is a classic multi-day route. The season peaks April to October, but late-autumn mists give the forest a particular mystery; winter is cold but several heated cabins operate year-round.