Winners of the Seven Natural Wonders Contest New Hampshire Magazine December
Polar Caves: A mountainside of glacial debris — huge boulders form caves, which you can explore via subterranean stairs and narrow passageways. Look up to see the overhanging cliff these boulders fell from. ( http://www.polarcaves.com)
Lost River Gorge & Boulder Caves: What else can you ask for? Waterfalls, caves, creepy passages to wriggle through, plus a geology lesson and a wildflower garden. (www.findlostriver.com)
Loon Mountain Glacial Caves: Ride the gondola to the little-known talus field at the top of Loon Mountain (www.loonmtn.com), where wooden stairs lead almost straight down into a jumble of house-sized boulders. You can simply look at the boulders or join the kids wiggling through the small spaces.