Geocaching invites St. Louis adventurers to find hidden treasure — and clean as they go

Geocaching is a decades-old treasure hunting game that combines outdoor fun and environmental awareness. With over 3 million physical “caches” worldwide — including 10,000 in the state of Missouri, there is no shortage of places to explore. John Layman, vice president of the St. Louis Area Geocaching Association, and Nan Dabler, the group’s treasurer, discuss the importance of respecting the environment as a geocacher and how the game got its start.