Our travels wii take us to Pontarlier for 3 days. Any ideas for enjoying the area? Hiking perhaps.
Try to get your hands on a copy of the Jura "Green Guide". It will list all sort of excursions! I have a copy from the 1950s somewhere, the mountains haven't moved much.
A few options off the top of my head;
The Source de la Loue is close to Pontarlier and is apparently a very impressive resurgence - not been, only went to the similar but smaller source du Lison. Don't go in a drought. The lake at Malbuisson is lovely, I've driven by on my way to Switzerland once. And Chasseron in Switzerland is an easy hike with amazing views!
Thank you so much for these suggestions!