Treetop Quest at Explore Park offers discounted rates for groups of 11 or more when you book in advance. Get 10% off for groups of 11 to 24 or 15% off for groups of 25 to 40. For inquiries, call our administrative center at (540) 387-6078 ext. 0. Treetop Quest is a family adventure for ages four and up, with progressively challenging aerial obstacles guaranteed to provide a thrill like you've never experienced! Adventurers soar through the forest on Tarzan swings, traverse cargo nets, balance on tightropes and fly across zip-lines.