One of the things I love most about hiking, beside the views and great workout, is the people you meet. I always love to hear their favorite trail or place to visit. One weekend we met a nice family while hiking who told us about Bear's Den in Gilsum NH. Of course I wanted to check it out.
Bears Den is such as fun and cool place to visit. Located on Route 10 north of Keene is Bears Den. It's about a mile hike in to various caves and rock formations.
If you climb to the top of the ledges you get a beautiful view looking towards Vermont.
The trail is not marked very well, so make sure you pay attending to were you are going. Also if it has been raining the rocks can be slippery. This hike is good for older kids who can safely climb up and down large rocks.