This "département" (county) allows you to travel anywhere on long distance bus for just 1€. So you can travel from Perpignan to the ski slopes or to visit the excellent Modern Art Museum in Ceret.
They are also running tests for local trains for 1€ as well.
www.cg66.fr/252-les-bus-departementaux.htm
www.musee-ceret.com/
8 Boulevard Maréchal Joffre, 66400 Céret
+33(0)4 68 87 27 76
Google map: bit.ly/UcQRyC