Embark on a magnificent week-long trek along the famous GR10 trail ! This seventh leg of the Pyrenees Crossing takes you from Ariège to the sunny, high-altitude plateaus typical of the Eastern Pyrenees . Starting from Mérens-les-Vals, you'll hike towards the Besines refuge before a beautiful mountain and lakeside stage around Puig Carlit , which rises to 2,921 meters. After passing by Lac des Bouillouses , you'll traverse the vast Cerdagne plateau . Located in the heart of the Catalan Pyrenees Natural Park, it's known for its famous yellow train and is home to magnificent mountain villages. Then you'll leave the Cerdagne plateau to continue your trek towards the Conflent region , with its more Mediterranean atmosphere. After the charming Carança refuge , nestled in a beautiful valley, you'll explore the Mantet and Py Nature Reserves . The landscapes will give way to high desert plateaus similar to the altiplanos of the Andes Mountains, up to the Pic du Canigou , overlooking the spa town of Vernet-les-Bains , which is the end point of your journey.