Nothing beats unwinding by the water while you're on vacation. Take a picnic to Lac Blanc and then stay for a peaceful sunset.
You'll have sightseeing choices galore when in Orbey. Lac Blanc is a great place to begin here, but there are numerous other interesting spots to explore. Col de la Schlucht, Le Lac Blanc Ski Resort, and Route des Cretes are close to the body of water and will round out your day nicely.