Close to Mortemer Abbey (http://www.abbaye-de-mortemer.fr/).Old Cistercian abbey founded in 1134 by King Henri Beauclerc between Lyons-la-Forêt and Lisor (27).
The small path that takes us there takes us over a small wooden bridge (careful, slippery). Its small stream is relatively wide but a few centimeters deep.
Difficult to vthe inside because the door is locked. However, the “large” model contains an “easter egg”.