The National Park stands between 4 counties: Alta Ribagorça, Pallars Sobirà, Pallars Jussà and Valle de Aran.

Although, strictly speaking, the park is only in the first two while the peripheral area includes all four.

The usual way of getting to the heart of the park is via the two historic entrances: Espot (Pallars Sobirà) and Boí (Alta Ribagorça).

To get to the Aigüestortes region, which comprises the high sources of the Sant Nicolau and Noguera de Tor rivers, you need to go to the Boí valley. Follow the L-500 road as far as Caldes de Boí, 2 km after the turn off for the town, you’ll find a forest track to the right that leads to the park. By taking the same road without turning off, you’ll come to the entrance near the Cavallers dam.

To get to Sant Maurici, you’ll need to go to the Àneu valley. Coming from the direction of Sort and just before you reach Guingueta d’Àneu, the LV-5004 turns off to the left and climbs to the town of Espot, from where you can easily get to the park entrance.

Access to private vehicles in the Sant Nicolau valley is regulated from the car parks on the L-500 road and 1 km after the start of the forest track into the National Park. From here on, you can only continue on foot, by bike or by public transport (4x4 taxis departing from the town of Boí). Both bicycles and taxis can only go as far as the Aigüestortes plateau.

In the area around the Estany de Sant Maurici (Sant Maurici Lake), parking is 4 km from Espot. From here, traffic is regulated and you can only continue on foot, by bike (as far as the lake) or by public transport (4x4 taxis departing from the town of Espot) as far as the Amitges refuge.

There are regular bus routes from Barcelona and Lleida. The Alsina Graells company runs a regular bus service to the bigger towns in the valleys.

You can also get here from Barcelona and Lleida by train. From Sants Station in Barcelona, the train will take you first to Lleida. From there, take the train to Pobla de Segur. This trip, which lasts a couple of hours, goes through some varied landscape with some truly spectacular sections. At present, a daily service runs from Lleida (departures at 13.15 and 20.45), with extra services on weekdays (8.30 and 20.45). You can find out more information by calling 973-22 02 02.

Entrance to the park by private vehicle is prohibited. You can get to the better known and more emblematic places in this lovely natural setting by using the off-road taxis that set off from the towns in the local area:
- Association of Taxi Drivers of La Vall de Boí: Tel. 629 20 54 89 - 973 39 63 14
- Association of Taxi Drivers of Espot: Tel. 973 62 41 05