The story: In Biarritz, where neo-Basque hotels often double as postcard-ready hangouts for surfers of varying ability, Casaviel opts for a quieter kind of elegance, the kind you stumble on almost by chance. Hidden down a peaceful street minutes from Ilbarritz and Milady beaches, this old farmhouse turned guesthouse by Diane Diemert and Lucas Hahl radiates sunshine without slipping into surf ca...