Jaca Village · Jaca, La Jacetania, Huesca Jaca is the historic capital of the comarca of La Jacetania, in the Pyrenees of Huesca, with around 14,000 inhabitants and an extensive municipal area of 392 km² that groups together numerous rural districts. The city stands on a plateau at 820 metres of altitude, beside the Aragón river, in the middle Upper Aragon depression between the inner mountain ranges of the Pyrenees, with elevations ranging from the 2,197 metres of the Punta de La Espata to the 670 metres on the banks of the river itself. To the north extend the sierra of San Juan de la Peña and the Peña Oroel (1,770 m). Its climate, oceanic-continental with inland nuances, records winters below -10 °C and summers exceeding 35 °C. It preserves the first Romanesque cathedral in Spain and the military Ciudadela. Photo: Elemaki (CC BY 3.0) What to see and do in Jaca