Buy tickets and join the fans at a game at Fitzgerald Stadium. If there's nothing happening while you're in the area, you might like to check if there's a guided tour of the grounds.
If you're planning to stick around a while in Killarney, Fitzgerald Stadium is a great place to start your exploring. This sporting facility is one of numerous attractions that'll keep you occupied here. INEC Killarney, Killarney National Park, and Ross Castle are also waiting for you close by.