WEEK 13:
Marengo Cave National Landmark

Marengo Caving Spelunkers, or cavers, revel in the seldom-visited darkness that lies underground — a lonely, quiet and often dangerous darkness that makes up in beauty what it lacks in warmth and light. MORE » Dudley's Journal Caving may have been Dudley's strangest adventure yet. Dogs tend to lie down and wait if they get lost rather than wander deeper into the cave, so we decided to bring him along. MORE » Essential Advice Our guide, Deb, taught us all about caving equipment and the beautiful scenery we saw underground. MORE »