The Muela of Humanes Nature · Humanes, La Campiña, Guadalajara La Muela is the hill on the other side of the río Henares, reached by crossing the river from Humanes, already within the boundary of the neighbouring municipality of Alarilla. It is a usual take-off spot for paragliding. In the municipal area of Humanes, in the comarca of La Campiña, the río Henares and río Sorbe also meet. Photo: Totemkin (CC BY-SA 3.0) What to see and do in Humanes