How much time should I budget for Cave of the Winds with a 5-year-old?

Budget at least 2 hours, probably 2.5. The official tour is 75 minutes, but a small child adds time for walking slower, staring at rocks, bathroom breaks, fear of the dark, and hand-holding. The Discovery Tour is the easiest family option, but your kid’s attention span sets the pace. Block off the full 2 hours from parking lot to car so you’re not rushing.