Explore the route
Set in an old quarry near Sesué, Castellaso climbs above the Benasque valley. The opening gradually leads to steeper, more athletic moves. The line is short but requires confidence with exposure. Confirm current access with Sesué municipality before planning a visit.
Visiting conditions
The regional source gives an approximate K3 grade. An unverified visitor comment on deandar dated 2 November 2025 reports a closure but names Benasque, although the route is in Sesué. Current official access status was not confirmed as of 16 September 2026.
Show this place on the mapEquipment for your activityA directory entry does not mean a route is open. Check the forecast, trailhead access and the managing organisation’s notices. Times are estimates; snow, heat and your group’s pace affect difficulty.