The Pyrenees area an outdoor playground and is not short of hiking paths (GR11, GR15 and the Camino the Santiago). On top of that there are tour providers for Canyoning, Mountain Biking, Hiking, Canoeing, Climbing, Fishing and more.
The interesting thing is that in the national parks have no gondolas or managed huts like in the Alps of Switzerland, Germany or Italy. All the mountains had to be climbed by food, which made the paths mainly empty and completely to our taste.