This is a guided 34 km introduction to gravel riding starting from Santader, following wide riverside tracks with only about 250 m of climbing in total. The surface is firm and forgiving, so you can learn how a gravel bike behaves on loose ground without the pressure of steep or technical terrain.
The route stays beside the river for most of the day. Expect long, open stretches where you can practise braking, cornering and choosing a line on gravel, with a guide on hand to explain each skill as it comes up.
Among the Santader tours, this is the starting point for unpaved riding. It is shorter and flatter than the Forest Gravel Loop east of Santader, and a long way from the Volcano gravel day near Santader, which suits riders who are already comfortable off-road. If you have never ridden gravel, begin here.