Natural Bridge Caverns’ caroling experiences continue every Friday and Saturday through Dec. 23. Credit: Courtesy Photo / Natural Bridge Caverns

In 1960, four students from St. Mary’s University convinced a Hill Country rancher to let them explore what they believed to be a small cave on her property.

What they found is nothing short of magical: miles of limestone chambers filled with towering columns, emerald pools of water and delicate crystalline formations dating back to the Cretaceous period.

Today, Natural Bridge Caverns is the most extensive cavern system in the area and one of the largest in Texas, attracting 400,000 visitors per year.

For the holiday season, the park adds a 30-foot Christmas tree and trail of lights, a 5,000-square-foot outdoor maze and an ice-skating rink to the mix, along with special Caroling in the Caves nights, a unique multi-sensory experience for people of all ages.

The caroling experiences continue every Friday and Saturday through Dec. 23.

$18.99 (children) and $24.99 (adults) for park admission with additional fees for tour packages including Caroling in the Caves, 4:30-6:30 p.m. Fridays and Saturdays, 26495 Natural Bridge Caverns Road, (210) 651-6101, naturalbridgecaverns.com.