The Hirbach lake
200 m from the Dôme and Jardin du Levant · 2 min from Gîte O²Once part of the Maginot Line's water defences, the lake is now a haven of nature where you'll spot ducks and swans. A trail of about 6.5 km (1 hr 30 on foot, free access) runs around it; anglers love it and the jetties offer superb sunsets.