This is a new sign that has gone up next to the cycle track that runs along the banks of the Garonne. I’m assuming it’s the work of some bored municipal official with a sense of fun.
Taking the directions in reverse order: yes, you can cycle to the station in less than five minutes from here; cutting across country there is a cycle track as far as Sauveterre-de-Guyenne in the Entre-Deux-Mers; you can get to Sète in Provence by cycling along the Garonne then following the Canal du Midi. But Norway????