The GR R1 is a 34 mi looped trail that starts and ends in Hell Bourg, Réunion. The trail is considered to be difficult to hike and has a total elevation gain of 18918 ft. The trail takes around 5 days. Either you are not allowed to bring your dog on the GR R1 or it is generally not advised.
The warmest months are March, April, and May and the coldest months are September, October, and November. The wettest months are June, July, and August and the driest months are December, January, and February.
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