Hair Raiser is the floorless steel roller coaster that anchors Thrill Mountain at Ocean Park in Hong Kong, sending riders over a cliff’s edge above the South China Sea with their legs dangling free beneath the train.
Built by Swiss manufacturer Bolliger & Mabillard and opened on December 8, 2011, it was Hong Kong’s first floorless coaster and remains the fastest roller coaster in the city, packing four inversions and about a minute of airtime and G-forces into a single cliffside circuit.
Quick Answer
Hair Raiser is a Bolliger & Mabillard floorless coaster at Ocean Park Hong Kong’s Thrill Mountain, opened December 8, 2011. It reaches about 55 mph (88 km/h), climbs 115 ft (35 m), runs 2,789 ft (850 m) of track, and hits four inversions — a vertical loop, dive loop, zero-g roll, and Immelmann — making it Hong Kong’s first floorless coaster and still its fastest ride.
Stats at a Glance
Park: Ocean Park, Hong Kong. Location: Thrill Mountain, Hong Kong Island side. Manufacturer: Bolliger & Mabillard. Model: Floorless Coaster. Opened: December 8, 2011. Height: about 115 ft (35 m). Top speed: about 55 mph (88 km/h). Length: about 2,789 ft (850 m). Inversions: 4. Duration: roughly 60 seconds. Max G-force: about 4 Gs. Minimum height to ride: 140 cm (4 ft 7 in). Trains: seven-car floorless trains seating riders four across, 28 per train.
The Ride Experience
Guests enter through a giant grinning face facade loosely inspired by Sydney’s Luna Park, a visual gag that doubles as the gateway to Thrill Mountain’s cliffside thrills. Riders board one of the seven-car, floorless trains — seated four across with nothing beneath their dangling feet — and climb the chain lift hill into a pre-drop that swings the train through a sharp 180-degree turn toward the edge of the cliff.
From there the layout strings together a vertical loop, a dive loop, a zero-g roll, and an Immelmann in quick succession, piling on roughly 4 Gs at several points while the floorless seating amplifies every drop and inversion. The course also includes an ejector airtime hill, where the on-ride photo is typically snapped, before the train threads back through Thrill Mountain to the brake run. The whole circuit lasts about a minute, but the combination of a floorless sensation, four inversions, and a setting perched above the South China Sea gives Hair Raiser an outsized reputation among Hong Kong’s thrill-seekers.
Why Hair Raiser Stands Out: First and Fastest in Hong Kong
When it opened in 2011, Hair Raiser broke new ground as Hong Kong’s first floorless roller coaster and its fastest coaster overall — titles it still holds. It was also the twelfth floorless coaster built anywhere in the world by Bolliger & Mabillard, placing it within a well-established and widely respected coaster model known for smooth, intense inversions.
Its debut was part of a larger expansion that grouped Hair Raiser with several other high-intensity rides into the Thrill Mountain zone on Ocean Park’s Hong Kong Island side, giving the park a concentrated cluster of thrill rides to rival anything else in the region.
Height Requirement and Who Can Ride
Riders must be at least 140 cm (about 4 ft 7 in) tall to board Hair Raiser, in line with other B&M floorless coasters of similar intensity. Because the floorless design leaves legs completely unsupported through every loop and roll, it’s a noticeably more intense experience than a standard looping coaster, so riders sensitive to inversions or who dislike dangling-leg seating may want to watch a train go by first or check the posted height marker at the entrance before queuing.
Where Hair Raiser Fits at Ocean Park
Hair Raiser sits inside Thrill Mountain, a hillside zone on the Hong Kong Island side of the park that clusters several of Ocean Park’s most intense rides together, with views stretching from the hilltop down to the South China Sea. It’s one of the signature attractions in that cluster, making it a natural anchor for a visit to Thrill Mountain alongside the park’s other coasters and thrill rides.
For current park hours, ticket pricing, and any ride closures or maintenance schedules, check the official Ocean Park Hong Kong site before you go, since theme park hours and admission tiers can shift seasonally.
Rub-on sunscreen that fits in a pocket — reapply in the queue without greasy hands on the lap bar.
Folds into its own pocket. Pop it on when the storm rolls in and the rides reopen to short lines.
Keeps your phone strapped to you, not in a loose-article bin. Zip it before the lift hill and walk straight off the exit ramp.
Hair Raiser Ocean Park Hong Kong FAQs
What type of roller coaster is Hair Raiser?
Hair Raiser is a steel floorless coaster manufactured by Bolliger & Mabillard, meaning riders sit with their feet hanging free with no floor beneath the train.
How many inversions does Hair Raiser have?
Hair Raiser has four inversions: a vertical loop, a dive loop, a zero-g roll, and an Immelmann.
When did Hair Raiser open at Ocean Park?
Hair Raiser opened on December 8, 2011, as the centerpiece of the park’s new Thrill Mountain zone, debuting as Hong Kong’s first floorless coaster and its fastest roller coaster at the time.
How tall do you need to be to ride Hair Raiser?
Riders must be at least 140 cm (about 4 ft 7 in) tall to board Hair Raiser.
How fast does Hair Raiser go and how long is the ride?
Hair Raiser reaches about 55 mph (88 km/h) and the full circuit, from lift hill to brake run, lasts roughly 60 seconds.
Where is Hair Raiser located at Ocean Park?
It’s located in Thrill Mountain, a hillside zone on the Hong Kong Island side of the park overlooking the South China Sea.
Is Hair Raiser still the fastest coaster in Hong Kong?
Yes. Since opening in 2011, Hair Raiser has held the title of Hong Kong’s fastest roller coaster, alongside being the city’s first floorless coaster.
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