Have flexible travel dates? Research what's happening in the next few weeks or months at Palais des Congres and time your stay with an event that's of interest.
Lots of visitors to Perpignan often have this events and conferences venue on their to-do list. But Palais des Congres is just one of many places worthy of a visit around these parts. If you've got time for more, Le Castillet will keep you on the go.