Best CyclingTrip

Comunidad Valenciana, Alicante, Spain

Alto de Aitana: the Costa Blanca's highest, hardest climb

Start point

Alcoleja

Distance

22.3 km

Elevation gain

1260 m D+

Duration

1h20 to 1h50

Difficulty

Hard

Best season

March to June, September to November

Road

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.

Getting to Alcoleja

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Where to stay near Alcoleja

A selection of well-located places to stay so you can start the ride fresh.

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Recommended gear

  • Compact or triple gearingAmazon
  • Sun protection and extra bidonsAmazon

Frequently asked questions

Is the summit road really restricted to a military site?+

The final metres lead onto a military communications facility that's closed to motor vehicles behind a barrier; cyclists can generally ride up to it on the public road, but it's worth checking locally, especially around race weekends when access rules can change.

Why is Aitana considered the hardest Costa Blanca climb?+

At 22.3 km and 1,260 m of elevation gain, it's both the longest and highest paved climb in the region, with the toughest kilometre — the sixth from the top — averaging over 9%.

Other nearby spots