Join the naturalist for this high tech treasure hunt and learn the basics of this new worldwide recreational sport. GPS units are provided. There will be a chance to test out your GPS skill on a critter activity before going out to find the park geocache. Limit of 20 people (must be 8 years of age and children must be accompanied by adult). Please sign up at the park office (prior reservation required). Meet at the upper picnic area next to the historic fort site.