Scavenger Hunt/Treasure Dig: Come one come all to the Yuba State Park Scavenger Hunt/Treasure Dig. Children and adults of all ages are welcome to put their scavenger hunting skills to the test. Tour the Beautiful Yuba State Park as you follow clues from location to location to dig up your prize!!! Park entrance fees apply. ($3 per participant) Event explanations begin at the Oasis Campground Day Use Pavilion at 1 pm!