br #AGD #travel #activity #activities #ticket #pass #review #discount #tour #experience #cruise br br United States - Pigeon Forge (TN) br Outdoor Gravity Park Zorbing Admission Ticket in Pigeon Forge br The OGO (Outdoor Gravity Orb) is an 11 foot transparent sphere constructed from over 300 square feet of a special plastic, more than 1,000 little, special, plastic, anchors, about 600 multi-colored strings and endless hours of welding, gluing and tying (part science and part art) combined to make a beautiful giant OGO ball. It may look like a huge hamster ball, but it was made for those fun-seeking humans to enjoy a variety of activities in it from surfing, swimming, sliding, running, jumping and more.