Beitrag in Hiking in Paris

Hello there, Someone looking for burning some calories before the coming holidays? I'll thinking about going on this route( https://www.visorando.com/randonnee-la-grande-traversee-de-la-foret-domanial/), starting from RER A la gare Maisons-Lafitte to Saint-Germain-en-Laye, takes about 6-7hrs. It's easy to access by RER, so perhaps we can meet up at Saint Lazare at 9h, taking the train (Transilien ligne L) of 9h26 and arriving at Maison-Lafitte before 10h. As this is also the first time that I discover this route, we'll take some time reading the instructions with the map, so if you are the kind of person that needs to know exactly where we are going and don't want to waste time, give it a second thought. Otherwise, you're welcome to discover this part of Paris with me!