The GR 37 is a 575 km trail that starts in Vitré, France and ends in Douarnenez, France. The trail is considered to be easy to hike and has a total elevation gain of 6379m. 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 September, October, and November and the driest months are March, April, and May.