La Boniagua - Esterri d'Aneu (Catalonia)

Start Town Altitude (m) Elevation Gain (m) Length (km) Gradient (%) Difficulty Rating
Esterri d'Aneu 2072 1112 20.5 5.4 698 ***

La Bonaigua - Esterri  Profile
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La Bonaigua from Esterri d'Aneu is a very steady and consistent climb with no significantly steep sections.

Roads & Traffic

The road surface is generally in good condition.

This is a quite a busy road throughout and on the straight roads of the lower part of the climb you can expect to be passed by fast moving traffic. Once the hairpins start it becomes much more pleasurable to climb, as the traffic becomes more intermittant and moves more slowly.

Climb Description

Port de Bonaigua - Esterri

La Bonaigua is the highest road pass in Catalonia and is one of the most celebrated cycling climbs in the region. It has been used in both the Tour de France and the Vuelta a España and is also one of the gateways into the French Pyrenees.

The climb from Esterri d'Aneu is the slightly more enjoyable of the two sides; largely thanks to the excellent views from the series of hairpin bendds in the final 6km. The traffic is a nuissance at times, particularly on the lower part of the climb, but the road is wide and, as long as there is good visibility and you pay attention, it is not especially unsafe.

If you are in the area, then La Bonaigua is a nice climb to do if you can avoid the busiest periods (weekends & holidays) - but it is not a mountain that is worth travelling a long distance specifically to climb it.

In theory the Bonaigua is open throughout the year, as the road is routinely cleared of snow in the winter (partly to enable access to the ski resort near the summit). However, short term closures are possible depending on the amount of snowfall from December to April.

Other sides

La Bonaigua can also be climbed from the west, starting in Vielha.

Nearby Climbs

Pla de Beret
Col du Portillon
Port Aine
Col de Peyresourde
Port de Bales


We don't currently run any tours including this climb. If you would be interested in customizing an itinerary to include this climb, please contact us.