The GR 107 is a 191 km trail that starts in Berga, Spain and ends in Montsegur, France. The trail is considered to be difficult to hike and has a total elevation gain of 7890m. Normally the trail takes 1 days to complete but can be finished in as little as 1 day.
The warmest months are June, July, and August and the coldest months are December, January, and February. The wettest months are March, April, and May and the driest months are December, January, and February.