Outdoor Gravity Park is the Parkway's genuine oddity: the only full-scale zorbing operation in the United States — the New Zealand-born sport of riding downhill inside a transparent 11-foot inflatable sphere — running a 1,000-foot grass hillside off the Pigeon Forge corridor with multiple track shapes and the two canonical ride styles. The wet ride (the H2OGO standard, and the one to choose) sloshes riders loose inside the ball with warm water — a human washing machine whose physics keep you sliding on a cushioned film, laughing involuntarily, down straight, zigzag, or sidewinder track lines; the dry ride harnesses a single rider for the tumbling full-rotation version (the stronger stomach's pick). Spheres take one to three riders, so friend-and-family crews ride together, the uphill shuttle handles the logistics, and multi-ride pricing matters because nobody rides once — the operation's own data point, and accurate. The format's practicalities are friendlier than the premise sounds: warm water year-round (the park runs seasons deep into fall), swimwear-or-clothes-you-will-wring guidance, changing rooms on site, and a ride duration (30-40 seconds of descent) whose replay economics drive the ticket tiers. The link books ride packages directly. The fit is the memory-per-minute play: teen crews, birthday stunts, couples settling dares, and every party whose Smokies album needs the frame no other state can supply — three friends, one giant ball, a Tennessee hillside.
The sport's provenance is the patter's best material: zorbing emerged from mid-1990s New Zealand (Rotorua's hillsides, the adventure-sport laboratory that also loosed bungee on the world), professionalized through the OGO lineage — the Kiwi operation whose founders brought the genuine article, track engineering and sphere specs included, to Pigeon Forge — making the park not a knockoff but the sport's licensed American embassy. The spheres run the standard double-wall construction (an 11-foot outer ball suspending a rider pod on hundreds of nylon tethers, the air gap the suspension system), and the hillside's 1,000-foot runs split into track personalities: the straight lane's pure-speed line, the zigzag's wall-banking switchbacks, and the sidewinder's long-curve carousel — riders work through the menu across a multi-ride package.
The ride-style decision defines the visit
Wet rides (a few inches of warm water in the pod) leave riders unharnessed to slide with the slosh — the style that generates the involuntary-laughter footage and takes one-to-three riders per ball, making it the social default; dry rides harness a solo rider to the pod wall for the full head-over-heels rotation — the stomach-dependent connoisseur option. Operationally the park runs shuttle-up-ride-down cycles with weather windows (warm-water operation extends seasons; storms pause lifts), GoPro-rental and photo services for the footage economy, and the changing-room-and-towel infrastructure the premise demands.
Practicals and fit
The park sits on the corridor's Sevierville-Pigeon Forge seam minutes from the Parkway's center; ride packages (the three-and-five-ride tiers dominate because replay is mandatory) book via the ticket link with walk-up windows weather-dependent; swimwear under clothes is the pro move, and eyeglass-wearers plan accordingly. The fit writes itself: the trip's dare, the teen crew's afternoon, the birthday centerpiece, and the one Smokies activity guaranteed novel to every member of any party — because whatever else the mountains offer, nobody's hometown has this.
What to expect
The experience
Downhill zorbing on a 1,000-foot Smokies hillside — warm-water wet rides for one-to-three or harnessed dry solos, across straight, zigzag, and sidewinder tracks, shuttle service uphill.
Best time
Warm-water operation runs seasons deep; multi-ride packages are the real ticket since nobody rides once. Weather windows apply.
How long
An hour-plus by package size, changing time included.
Tips
Choose wet — the slosh is the sport. Swimwear under clothes is the pro move. Three friends in one ball is the configuration the footage demands; rent the GoPro.
Quick picks
- Best for
- The trip's dare and the memory-per-minute champion — nobody's hometown has this.
- Families
- Ride-together spheres make it the rare thrill parents and kids take simultaneously; height-and-age rules at the desk.
- Couples
- One ball, two riders, zero dignity — the relationship diagnostic disguised as a hillside.
- Pair with
- The alpine coaster for the gravity double; dinner shows after the changing room.
- Time needed
- Ninety minutes, replay budgeted.
Good questions
What is zorbing exactly?+
Riding downhill inside an 11-foot double-walled inflatable sphere — New Zealand's invention, run here by the sport's OGO lineage on the only full-scale US track.
Wet or dry?+
Wet — warm water in the pod leaves you sliding loose with the slosh, one-to-three riders laughing involuntarily. Dry harnesses a solo for full head-over-heels rotation; stomachs self-select.
Do we get soaked?+
Pleasantly — the water is warm year-round, changing rooms and towel logistics are on site, and swimwear-under-clothes is the pro arrival.
How long is a ride?+
Thirty-to-forty seconds of descent per run — which is why multi-ride packages dominate and the track menu (straight, zigzag, sidewinder) exists to be worked through.
Is it safe for kids?+
The wet rides' loose-slide format takes families together within posted height-age rules; the operation runs the sport's standard specs and staffing. The desk's chart settles lineups.
