Rickwood Caverns State Park in Warrior opens the door to an underground world of limestone formations that are about 260 million years old. Stalactites, stalagmites and flowstone create a quiet and otherworldly landscape beneath the surface. Guided cave tours lead visitors through the chambers and explain how the caverns formed over time. Above ground, the park has a swimming pool, a campground and picnic areas, making it a fun destination for families. Park entry is free, but cavern tour tickets are required and can be found at alapark.com. Cave temperatures stay cool all year, so bring a light jacket and wear comfortable shoes.