This is a full day of gravel riding in the Garrotxa, the volcanic country in the north of Catalonia. The route covers 88 km on loose tracks that wind between extinct volcanic cones and run through beech forest, with 1,600 m of climbing spread across the day. It is a hilly, sustained ride rather than a series of short punchy efforts, and the surface is rougher than anything on the easier gravel days on this site.
Expect farm tracks, forest roads and stony climbs, with long stretches where the trees close in overhead and the ground is soft with leaf litter. The volcanic cones give the route its shape: you ride around and between them, never far from a view of the next one.
Of all the tours here, this is the toughest gravel day. The forest gravel loop east of Barcelona is shorter and calmer, and the riverside gravel intro is a gentle first taste of the surface. This one is for riders who already enjoy long off-road climbing and want a proper day out of the city.