Park in the car park at the Somport cross-country ski centre.
(S/E) Take the road on the right, then right again to reach the crossroads for cross-country skiing and snowshoeing.
(1) Turn left onto the snowshoe trail. Follow an easy climb to reach a crossroads in a clearing.
(2) Continue leftwards to reach the border ridge, with boundary stone 304 on the left.
(3) Turn right onto the ridge to reach the Spanish military zone.
(4) Turn back along the same route to the crossroads in the clearing.
(2) Take the track on the left to reach the capercaillie protection area.
(5) Return in the opposite direction to the clearing crossroads.
(2) Follow the path back in the opposite direction to the one taken on the way out, keeping left, to return to the Somport car park (S/E).