BTT 21 – The ponds
Distance: 30.9 km
Vertical distance: 685 m
Estimated time: 2 h 30 min
Level of difficulty: Very difficult
The route begins at the former Amer narrow gauge railway station (Carrer Pujada de l’Estació, 15), which is the site of the Girona-Olot Greenway Visitor Centre (1). It can also be started from Sant Martí Sacalm, where there is an alternative departure point. This route is perhaps one of the most attractive in terms of landscape, and is also highly recommended for more expert users given the level of difficulty (it includes an ascent from 175 m in Amer to 800 m in Sant Martí Sacalm).