Hours: Park open daily 24 hours, year-round. Vendors open noon-8, Memorial Day-Labor Day. Train trips depart every 15 minutes noon-4 and 5-7:45. Palace Theater show nightly at 8:15, mid-May to early Sept. Theater show is not recommended for children under 13. Big Stampede shows are presented daily at 11:30, 1, 2:30 and 4.