Luxembourg's Little Switzerland: 112 km, 7 stages through the Müllerthal sandstone formations — narrow canyons, mushroom rocks, natural arches, and wooded ravines unique in the Benelux.
Luxembourg's Little Switzerland: 112 km, 7 stages through the Müllerthal sandstone formations — narrow canyons, mushroom rocks, natural arches, and wooded ravines unique in the Benelux.