Mention it's Arizona State Parks' 50th anniversary this year and get a 50 percent discount at Kartchner Caverns State Park.
When: Now through Sept. 24. Park hours are 7 a.m.- 6 p.m. daily.
Cost: Reserved cave tour tickets are now $10.98 per adult and $6.48 per child. Walk-up tickets are now $9.48 per adult and $4.98 per child with a $5 park-entrance fee per vehicle. Camping is also half off.
Where: Kartchner Caverns is on Arizona 90, nine miles south of Interstate 10.
Book soon: Online at www.azstateparks.com or call 1-520-586-2283.