The GR 5 is a 624 km trail that starts in Thonon-les-Bains, France and ends in Nice, France. The trail is considered to be difficult to hike and has a total elevation gain of 36313m. 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 December, January, and February and the driest months are September, October, and November.