Jaca is a small Aragonese town at the foot of the Pyrenees, historically the first capital of the Kingdom of Aragon and an important stop on the Camino de Santiago. It is most often reached from Huesca, the provincial capital, by bus or train, but it also provides one of the easiest entrances to Spain over the Pyrenees from Oloron-Sainte-Marie in France via Canfranc.
The town has an 11th-century Romanesque cathedral — one of the oldest in Spain — and an extensive star-shaped citadel from the 16th century. The Monastery of San Juan de la Peña, built into a cliff face about 20km from town, is one of the most remarkable medieval sites in the Pyrenees. Jaca lies a short distance from the high mountains, which means it works best as a base for hiking for those with a car. For those relying on public transport, the villages deeper in the valleys may be more convenient, but Jaca has the best services, shops, and restaurants in the area. In winter, the nearby ski resorts of Astún and Candanchú draw a different crowd.