No not a competition. Last summer my mates and I were travelling from Aix Les Bains to Belfort. As the day got late, we were pushed to make our self imposed deadline. Somewhere south of Belfort, possibly nearer Besancon we travelled along a valley, alongside a river. The rock formations were stunning but the most strangest thing was a large hotel under an overhanging cliff. We desperately wanted to stop but didn't have the time, and I want to return there this year. Can anyone oblige with a hint where that is.