Organized by the Comité Départemental of Tourism in the Essonne, the « Secrets de Jardins » gives access to a very large diversity of green spaces. More than 90 parks and gardens participate.

For the 2015 edition, and as a prelude to the Journées des Jardins, on the 6th & 7th June, Courances offers a reduced rate for all visitors during the entire weekend:

Park and château: 7,50€ (instead of 9,50€)

Park only: 5,50€ (instead of 7,50€)