From departmental park of La Bergère, continue on the cycle track along the canal up to the bridge of Sevran (8 km). From there, the least sports can join the RER(REGIONAL EXPRESS NETWORK) B at the station of Sevran-Livry. The bravest will continue up to the park of la Poudrerie mill to Sevran (500 m). They will discover it the vestiges of the national Powder mill (closure of the park at 7:45 pm). After a well deserved stopping place, you will do the return trip return to join Paris. Attention on the wind which blows generally in the sense of return (route more tiring than on the way out).