The Otter Trail
- Departure: Palanca de la Molina
- Arrival: Planell d'Aigüestortes
- Distance: 6,50 km
- Duration: 2h30 m
- Incline : 430m
- Degree of difficulty: Moderate
- Type of route: Linear
- Suitable for MTB: No
- Best time of year: Spring, summer, autumn
* Difficulty obtained by the SENDIF method
It is a very pedagogical itinerary for the "topic of quaternary glaciers", wich is a good option to see what kind of Park is. Recommended for small groups.
* In the summer (from 21 June to 30 September) there is a public transport service, known as the Bus del Parc, or Park bus, that links the L’Alta Ribagorça trails with neighbouring regions. The service consists of 4 bus routes that run daily between the valleys
of Boí and Espot via the Val d’Aran.