Domaine du Ciran, Botanical garden in Ménestreau-en-Villette, France.

The Domaine du Ciran is a 300-hectare wildlife conservatory centred on a 19th-century château, with a red-brick facade, pale stone trim and a round turret under a conical grey slate roof. Its 220 hectares of forest, meadows, heaths and ponds (étang bas, étang des joncs) are crossed by discovery trails of 3.2, 4 or 5.2 km. The château park holds about thirty tree species, including a 500-year-old oak called the "chêne de Jeanne d'Arc".

The estate originated in the 19th century and retained its historic castle, now used as lodging and an educational center. Over time, the grounds evolved into a nature conservation area managed by the Sologne Foundation.

Since 1997 the estate has held the Fête du Domaine every April, with demonstrations of old crafts. The castle houses exhibitions and a video library of about 150 films. The park is named for a more than 500-year-old oak, the "chêne de Jeanne d'Arc", and the farm keeps sheep under the name "Les Prairies du Domaine".

The grounds are walkable with trails of varying difficulty suited for bird watching and wildlife observation. Sturdy footwear is advisable, especially after rain when surfaces can become slippery.

The site features specialized observation areas where red deer can be seen in their natural setting. During certain seasons, visitors may witness their rutting period when males actively compete for breeding.