Widetrip, it's a style Airbnb concept but for guided tours of Paris. Parisians do you discover Paris otherwise, all with a touch of sustainable development. See, for example, local actors working for the environment in a neighborhood.
WideTrip begins to develop other experiences elsewhere in France: Bouches du Rhône, Var, Vaucluse...
The very large majority "guides" and proposed visits have a logic of development and environmental protection.