Howe Caverns
One of the most visited natural attractions in New York with guided tours through a massive cave system 156 feet underground. The 80-minute walking tour includes a boat ride on an underground lake that kids think is magical. Limestone formations, narrow passages, and the sheer scale of the caverns are genuinely impressive. The temperature underground is a constant 52 degrees making it a great rainy-day or hot-day activity. An above-ground adventure park with ropes courses and zip lines adds outdoor fun.