La Roche en Ardenne, Belgium offers 1 beach perfect for sunbathing, surfing, swimming, and more. La Roche en Ardenne is known for its medieval castle, the Feudal Castle of La Roche, and the Battle of the Bulge Museum. The best time to travel to La Roche-en-Ardenne, Belgium, is from June to August, when the average air temperature is around 18-22°C (64-72°F) and the water temperature in nearby rivers is approximately 15-18°C (59-64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!