"Genkai Underwater Observation Tower" is being renovated into an underwater immersive theater | NOMURA is in charge of planning, concept design, construction, digital production, and opening PR for the observation tower.

First in Japan to introduce 360-degree projection mapping as an underwater observatory
NOMURA will be in charge of planning, concept design, construction, digital presentation, and opening PR for the observation tower.

The Genkai Underwater Observation Tower, located at Cape Hato in Genkai Quasi-National Park in Karatsu City, Saga Prefecture, reopened for the first time on April 1, 2024, after 50 years since its opening. This facility is the first undersea observation tower in the country to use projection mapping, allowing you to enjoy an immersive experience that makes you feel like you are underwater while looking at actual fish.

"Genkai Underwater Observation Tower" opened in 1974 as the only underwater observation tower in the Sea of Japan. In the observation room located at a depth of 7 meters, you can see various kinds of fish swimming and seaweed and shellfish in their natural state through 24 underwater windows. However, due to the decline in the number of tourists due to aging, etc., the renovation was made. While taking advantage of the charm of the traditional view, the underwater experience is further expanded with digital presentation. Fish seen around Cape Hado are projected onto the ceiling and walls, creating an immersive space that will draw you into the underwater world. This renewal is expected to increase the number of tourists and revitalize the area. NOMURA is in charge of the planning, concept design, construction, digital presentation, and opening PR of the observation tower.

An immersive experience in a real underwater space. Increase the appeal of Genkai by creating added value.
The observation room has a mirror-decorated spiral staircase and diffused reflections on the walls, creating a kaleidoscope-like underwater world where ever-changing sea creatures and images are reflected. Another highlight is the impressive video show that takes viewers on a journey through Genkai's diverse underwater world. In line with the story of a journey through the sea of Genkai, you can enjoy an immersive experience that will make you feel as if you are immersed in the sea, using lighting technology such as 360-degree video, 3D sound, and water effect lights that express the swaying of water.

Project Contact
For 50 years, the Genkai Underwater Observatory has fostered connections between people and marine life. We wondered if we could use digital technology to update it to a new experience while preserving the memories of it as a place beloved by many people. The immersive experience of seasonally changing sea creatures and video footage, which can only be experienced here, may lead to new discoveries every time. We hope that you will also come to the observation tower and discover the charm of Genkai's beautiful sea and creatures.

About Genkai Underwater Observation Tower
In 1970, the waters surrounding Cape Hato were designated as part of the quasi-national park ``Genkai Marine Park'' (currently Genkai Marine Park), Japan's first marine park. The ``Genkai Underwater Observation Tower'' is connected to the land of Cape Hado by an 86-meter pier.The observation tower is 20 meters high and 10 meters in diameter, and from the deck you can see the islands of the Genkai Sea on three sides.