Purchase tickets and join the crowds at a game at Rey Stadium. If there's nothing scheduled while you're in the area, you might like to check if they give a guided tour of the grounds.
This Castres sporting facility is an ideal spot to kick off your day of sightseeing. There's plenty to experience close by, including Place Jean Jaurès, Castres-Gourjade Golf Course, and Travet Stadium. Wander around at your leisure at Rey Stadium before heading to these other fine sights.