The Syndicat Mixte du Grand Site de l’Estérel is a public organisation dedicated to the protection and enhancement of the Estérel massif, an iconic landscape on the Côte d’Azur. It supports the Grand Site de France initiative and works to preserve the area’s natural, geological and cultural heritage while welcoming visitors and encouraging responsible activities.

The organisation shares information about the territory and its landscapes, biodiversity, history and trails through resources, exhibitions and publications, including a book introducing the Grand Site. It also offers free, guided themed outings covering subjects such as geology, wildlife, astronomy, hiking, watercolour and Mediterranean forests. Events, volunteer workdays and public activities provide further opportunities to discover the massif and meet local organisations and conservation partners.

Alongside visitor engagement, the Syndicat coordinates practical measures related to forest-fire prevention, including the PIDAF programme, water tanks, barriers, signage and forest tracks. It also provides guidance for events held in the area.