About Us
Gravity Park Holdings Ltd. is a trailblazing company that specializes in the design, construction, and operation of innovative gravity-based adventure parks across the nation. Our portfolio transforms Japan’s stunning natural wonders—dams, canyons, and valleys—into exhilarating destinations that blend adrenaline with eco-conscious innovation.
We proudly hold a legacy of groundbreaking “firsts” in Japan’s adventure landscape. We pioneered the use of suspension bridges as thrilling activity hubs, starting with the heart-pounding Canyon Walk at Chichibu Geo Gravity Park—featuring Japan’s scariest 54-meter-high bridge suspended by just four wires. We were the first to design, build, and operate oversized canyon swings, delivering zero-gravity freefalls from 57-meter platforms over the Arakawa Valley. And we’ve pushed boundaries further with unique installations like staircases ascending support cables to 60-meter-high towers and viewing decks overlooking Osaka City.
At our core, our mission is to craft sustainable, gravity-defying outdoor experiences that ignite the spirit of adventure for all ages, all while championing safety, environmental harmony, and lasting memories. We foster deep partnerships at every level of government, securing public bids and long-term leases to breathe new life into local communities—revitalizing rural economies through tourism and events that draw visitors year-round.
As seasoned pioneers in aerial and extreme pursuits, we import international best practices to elevate Japan’s landscapes into world-class playgrounds. From initial concepts to flawless operations, our team—adhering to rigorous global standards like AS/NZS 5848 for bungee and ACCT for ziplines—delivers years of impeccable, accident-free performance.
Our Services
We offer a mix of solutions for green season adventure projects, concept design, safety assessment, build, operate, focusing on eco-friendly designs that blend adrenaline with nature:
Design
We conceptualize and design, suspension bridges, and activities tailored to unique sites like dams and canyons and theme parks. Our team incorporates universal accessibility, seismic resilience, and aesthetic elements appealing to a large demographic. We analyze products from around the world in introduce new and innovative designs to Japan.
Build
Utilizing high-quality, durable materials designed for typhoon and earthquake resistance (with lifespans exceeding 80 years), we construct facilities like Japan’s longest pedestrian suspension bridge and zipline systems. Recent builds include the 420m Goda Bridge in Osaka, featuring see-through floors and panoramic views.
Operate
Full management ensures safe, engaging operations with trained professionals, including jumpmasters with 10+ years of experience. We handle everything from ticketing and maintenance to community events, such as weekend markets and corporate spaces, fostering year-round visitor circulation and revenue.
Featured Projects
Geo Gravity Park Chichibu
Japan’s first gravity-based adventure park, opened in 2019 in the stunning Chichibu Valley, Saitama Prefecture (just 1.5 hours from Tokyo). Nestled amid mountains and the Arakawa River, this park lets visitors defy gravity with harnessed thrills. Key activities include:
Canyon Walk
Traverse Japan’s scariest suspension bridge—54m high, 100m long—suspended by just four wires for heart-pounding aerial views.
Canyon Fly
Dual ziplines soaring 100m across the canyon, 50m+ above the river, for superhero-like speeds and scenery.
Canyon Swing
Japan’s first oversized swing from a 57m platform, plunging to 10m above the water in zero-gravity freefall.
Canyon Bungee
A 50m jump from a wire-suspended platform—Japan’s newest bungee site.
Canyon Super Zip (coming soon)
An ultra-fast escape from gravity for extreme adventurers.
Gravitate Osaka
Our flagship design-build-operate project at Aigawa Dam in Ibaraki City, Osaka Prefecture—opened Spring 2025 as a world-class activity hub surrounded by forested landscapes, terraced paddies, and urban vistas. Just 35 minutes from central Osaka by car, it features Japan’s longest pedestrian suspension bridge (GODA Bridge, 420m), with a concave see-through design offering swaying thrills and 360° views of Osaka skyline and dam lake. Activities blend bridge walks, freestyle jumps, giant swings, and potential ziplines/roller zips. Integrated amenities include 550 parking spots, a family playground, hydrangea forest, hiking trails, café, and event spaces for markets and corporate gatherings. A day-trip gem accessible from Kyoto, Kobe and Osaka all less than an hour by car.
Fujikyu Group Partnership
Design, Build, and Maintain
In collaboration with Fujikyu Group one of Japan’s premier theme park operators—we’ve designed and built three gravity-defying attractions:
Futen Bridge Park:
8 suspended challenge bridges.
Fujiyama Walk:
A skywalk around the top of the Fujiyama Tower 60m above the ground.
Fujiyama Slide:
Japan’s highest tube slide.
These high-altitude experiences enhance Fujikyu’s portfolio, integrating aerial walks and towers with record-breaking coasters for immersive, safe thrills. Ongoing maintenance ensures peak performance, drawing millions to these tourism hotspots.
Koichi Bridge and Zipline
Conceptualized for Kochi Prefecture’s dramatic Niyodo River in Shikoku, this bridge and zipline zipline project spans the river amid lush forests. As a design initiative, it emphasizes eco-integration with local satoyama vibes, offering tandem options for couples and families. Harnessing the “Screaming Suspension Bridge” nearby, it’s perfect for nature lovers seeking zero-gravity escapes over one of Japan’s pristine mountain streams.
Tochigi Bridge and Zipline
Our conceptual design for a high-adrenaline zipline over a new dam in Tochigi Prefecture envisions multiple lines criss-crossing the water merging with high towers and bridges. This eco-resilient adventure park will increase tourism and help revitalize the local community by transforming the site into a year-round gravity hub amid autumn leaves and mountain streams.