First tip would be to go to Montpellier not Perpignan
Only messing, I'm on the Friday Liverpool-Nimes flight going out and Montpellier-Leeds/Bradford coming back. Would have got the return from nimes but was too expensive at the time I booked. Knew I should have been a bit more patient!
Stopping at the Ibis in centre comedie or whatever it's called. Ground was a tram ride away last year but not sure where the ground is this year. Would imagine you can get there by tram though.
As for what to do on the sunday....drink?