Go on a modern-day treasure hunt in Franklin Mountains State Park!

Learn how to use a Global Positioning System (GPS) to participate in the world's biggest "treasure hunt," geocaching. Use coordinates and clues to find hidden caches left by other geocachers all around the world.

Reservations required; to reserve your spot, call the office at (915) 444-9100; space is limited to 12 participants.

Fee: $8.00 per adult 13 years of age and older, $3.00 for Texas State Park Pass holders, and $1.00 for children between the ages of 5 and 12. These fees include both day entrance fee to the park and the activity fee for this workshop.

Bring: water, snacks, hiking boots/shoes, and comfortable clothes.

Optional: binoculars, hiking stick, camera, and a map.

Meeting location: The new Visitor Center in the Tom Mays Unit.