The highest paved climb on the Costa Blanca, Alto de Aitana has become one of the region’s benchmark ascents, its final slopes brushing a restricted military summit at 1,558 m.
A long climb that saves its hardest kilometre for last
From Alcoleja, it’s 22.3 km for 1,260 m of elevation gain, averaging 5.8%. The gradient stays moderate for much of the climb before the sixth kilometre from the summit, which averages over 9% — from there, it rarely drops below 8% all the way to the top.
A Vuelta a España summit finish
Alto de Aitana has featured as a summit finish in the Vuelta a España, its combination of length, altitude and exposure making it a natural selection point among the Costa Blanca’s inland climbs.
Getting the ride right
Sun protection and extra bidons matter here: the lower slopes offer little shade, and the exposed upper switchbacks can be brutally hot outside the cooler months.
When to go
March to June and September to November — summer heat at these lower Mediterranean latitudes can make the climb genuinely dangerous by midday.
Good to know
The final stretch runs onto land belonging to a military communications facility. A barrier stops cars short of the summit, and cyclists can typically continue on the public road, but access can tighten around events — worth confirming locally before you go.