On May 2, 2000, the U.S. government lifted restrictions that made GPS technology more accurate and accessible to the general public. This day became known as Blue Switch Day, and this decision inadvertently created a new outdoor hobby. Geocaching is an activity where participants use GPS and coordinates to hunt down hidden containers, known as geocaches or caches, often located in parks, forests and cities around the world. The first cache was hidden just outside of Estacada, Oregon, only one day after Blue Switch Day. Twenty-five years later, there are now more than 3.3 million caches hidden around the world.

PJ Hubbard is the treasurer for GEOregon, a nonprofit dedicated to creating a community for geocachers in Oregon. The group is holding a Block Party event in September at Champoeg State Park to celebrate this anniversary. Hubbard joins us to share more about the past, present and future of geocaching.