In the south of the Landes, by the Gave d'Oloron river, on the Way of St James, you can discover the church and the remains of the Abbey of St John in Sorde-l'Abbaye.
Founded in the 10th century, then reworked many times in the course of its history, this former Benedictine monastery is now open to the public for guided tours, during which you can see its chapter house, refectory, cloister, terrace overlooking the river and the exceptional cryptoportico, a 70-metre-long subterranean gallery! The abbey church, for its part, has a superb Romanesque mosaic in its choir...