The village of Arreau, nestled in the heart of the Bigorre between the collars of Aspin and Peyresourde, invites hikers to the ride by discovering its houses with the slate roofs and its old mansions such as the house of the Lys and Château des Nestes.

SarranColin, medieval and fortified village, renowned for its marbles exploited from the Roman antiquity. Above rises the Bassia signal (1,921 m), from which one has extensive view, north to the baronnies, south on the high pyrenean chain.