Adventurous kids will enjoy exploring the lost river gorge and boulder caves,a network of caverns and crevices formed by glaciers millions of years ago. Each cave has its own title and story, from the Bear Crawl to the Dungeon. Climbing, crawling and squeezing is required. From mid-June to early September, Saturday evenings also feature guided 1½-hour lantern tours , which culminate with a marshmallow and s'mores treat around a fire pit. This place is west of North Woodstock on NH 112.