(8-Adult) Learn how to use hand-held Global Positioning System (GPS) units to locate hidden treasure caches within Lake Fairfax Park.
After finding out how to enter latitude and longitude coordinates into a GPS, students follow the coordinates to find a hidden object, container or unique geological feature. Bring your own GPS; a limited number are available to borrow from the instructor at class. The program runs from 2 to 4 p.m., and the cost is $22 per person.
For more information, call 703-471-5414.
Registration: Register Online