Marine World Uminonakamichi is a major aquarium in Fukuoka City, Fukuoka Prefecture. Its official Japanese name is Uminonakamichi Marine Ecological Science Museum. The aquarium opened in April 1989 and was renovated and expanded in April 1995.
The aquarium’s central theme is the Tsushima Warm Current, which influences the marine environment around Japan. Its exhibits feature approximately 20,000 specimens representing 350 fish species, ranging from tropical to cold-water environments. Visitors can explore a wide variety of marine life while learning about the ecosystems that connect the sea around Kyushu with the wider Pacific region.
In addition to fish, the aquarium is home to dolphins, spotted seals, sea otters, sea turtles, and many other animals. Popular highlights include dolphin and sea lion performances and a huge panoramic tank in which sand tiger sharks swim among other marine creatures. Since 2000, the aquarium has also offered evening opening hours during certain periods, particularly the summer holiday season.
Marine World is located on Uminonakamichi, a sandy peninsula or sandbar that extends between Hakata Bay and the open sea. The aquarium stands within Uminonakamichi Seaside Park, surrounded by a natural environment that feels removed from the bustle of central Fukuoka even though it is within the city.
The building’s design is inspired by a seashell. Its semicircular form and tent-like roof, secured by wires, give the structure a distinctive appearance that reflects its marine theme.
The aquarium’s mascot, Megatotto, is inspired by the megamouth shark. The character was designed by Norio Hikone and has become one of the recognizable features associated with the facility.
One of the aquarium’s major attractions is its panoramic offshore ocean tank, which extends vertically through the first and second floors. The tank measures approximately 24 meters by 10 meters, reaches a depth of 7 meters, and contains about 1,400 tons of water.
Approximately 20,000 fish representing 80 species swim through the tank. Among them are around 100 sharks of 20 species, as well as approximately 20,000 sardines. The large number of fish creates a vivid impression of an active ocean environment rather than a collection of isolated displays.
When the surrounding gallery is darkened, lighting illuminates the sharks, rays, and schools of Japanese sardines moving through the water. Their changing formations create a dramatic underwater scene that is one of the aquarium’s most memorable experiences.
The aquarium also presents a program called Diver Uocching, which combines live underwater-camera footage with explanations and conversations with divers. This gives visitors an opportunity to see aspects of the tank from a diver’s perspective and learn more about the animals and their behavior.
The show pool is used for performances featuring dolphins and sea lions. Animals kept in the facility include bottlenose dolphins, Pacific white-sided dolphins, Pacific white-sided or Risso’s-type dolphins listed in the original Japanese source as Hana-gondo, and short-finned pilot whales.
The main viewing areas are located on the second and third floors, allowing visitors to watch the performances from elevated seating. The shows feature the animals’ jumps, movements, and interactions with their trainers, creating an entertaining experience for children and adults alike.
The first floor contains a restaurant with windows through which visitors can observe the underwater portion of the pool. Guests can enjoy a meal while watching dolphins swim past the glass. Food shops around the show pool also offer light meals and refreshments.
In April 2009, to commemorate the aquarium’s 20th anniversary, a new area called Kaiju Island was completed. This zone features California sea lions and spotted seals, allowing visitors to observe these animals from different angles.
A spiral ramp connects the first and second floors, enabling visitors to see the animals from both levels. The exhibits emphasize animal behavior and take advantage of the animals’ natural habits to make observation more engaging.
Interactive programs include Pakupaku Seal, an activity in which visitors can enjoy feeding seals. These experiences provide opportunities to observe the animals more closely and learn about their behavior beyond what can be seen in a conventional viewing tank.
A restaurant is located on the first floor in front of the show pool. Its menu includes a variety of dishes, such as curry rice, udon noodles, and children’s meals. Group reservations are also available.
The restaurant’s location allows guests to watch the dolphins in the pool while dining, adding a distinctive marine-life setting to a meal. Food shops near the show pool provide additional options for visitors who prefer a quick snack.
Marine World contains a diverse range of exhibition areas in addition to the panoramic tank and show pool. These include a tank recreating the rough waters of the Genkai Sea, the Aso Water Forest area, a finless porpoise pool, Penguin Hill, and sea turtle exhibits.
The different areas introduce visitors to marine and freshwater environments and the animals that inhabit them. Seasonal special exhibitions also provide opportunities to encounter different subjects and learn about particular species or aspects of aquatic life.
Other facilities include Tanken Beach and Marine Hall on the second floor, as well as the Fantasy Slope on the third floor. Together, these spaces expand the range of experiences available to visitors and support the aquarium’s combination of entertainment, learning, and animal observation.
The dolphin show is one of Marine World’s most popular attractions. Visitors can watch the dolphins leap out of the water and perform coordinated movements with their trainers. Their agility and lively behavior make the show appealing to a wide range of ages.
The sea lion show is another highlight. Sea lions demonstrate their characteristic movements and playful behavior while working in coordination with their trainers. The performances combine entertainment with opportunities to observe the animals’ abilities and behavior.
Show schedules may vary depending on the day and season, so visitors who wish to see a particular performance should check the current schedule when planning their visit.
At the touch pool, visitors can come into direct contact with selected marine animals, including starfish and sea cucumbers. The area is particularly popular with children because it provides a hands-on introduction to creatures that might otherwise be seen only behind glass.
The penguin exhibit allows visitors to observe penguins at close range and watch their daily activities. The animals’ distinctive movements and social behavior make this area a favorite with families and photographers.
Together with the seal and sea lion exhibits, the touch pool and penguin area provide a range of experiences that complement the larger aquarium tanks and live performances.
Marine World operates on the principle that an aquarium should serve as an educational institution as well as a place of entertainment. It uses visual and audio equipment to improve its exhibits and explanations, helping visitors understand marine environments and the behavior of aquatic animals.
The aquarium also offers experiential learning programs and educational talks outside the facility. These activities help bring marine education to schools and other groups, expanding opportunities for people to learn about aquatic ecosystems.
Remote learning and the use of digital educational environments are also part of its activities. Through video calls and internet-based connections between the aquarium and schools, Marine World supports educational programs that can reach students who are unable to visit in person.
These educational and research activities reflect the aquarium’s wider role in communicating knowledge about marine life and encouraging interest in the natural environment.
The aquarium is accessible from Uminonakamichi Station on the JR Kyushu Kashii Line. The original article gives the walk from the station as approximately seven minutes. Visitors can also use the Nishitetsu bus service and get off at the Marine World Uminonakamichi bus stop, followed by a walk of about five minutes.
Boat services provide another way to reach the aquarium. Visitors can travel from Momochi, at Marizon, or from Hakata Port’s Bayside Place. The boat journey from either departure point takes approximately 15 minutes.
Arriving by boat offers a different perspective on Fukuoka’s waterfront and makes it possible to combine the aquarium with other seaside attractions.
By car, Marine World is approximately 6.5 kilometers from the Island City exit of the Fukuoka Urban Expressway Route 6 Island City Line, or about 15.5 kilometers from the Koga Interchange on the Kyushu Expressway.
Paid parking is available in a lot shared with Uminonakamichi Seaside Park. Visitors arriving by car should allow extra time during busy holidays and seasonal events.
Marine World Uminonakamichi combines large-scale marine exhibits, animal encounters, live performances, and educational programs in a scenic coastal setting. From the 1,400-ton panoramic tank and its schools of sardines to the dolphin and sea lion shows, the aquarium offers many ways to discover the diversity of aquatic life.
The facility’s location within Uminonakamichi Seaside Park also makes it easy to combine a visit with time outdoors. Whether traveling with family, exploring marine ecosystems, or simply enjoying the animals and performances, visitors can experience a different side of Fukuoka surrounded by the sea.
March-November 9:30-17:30
December - February: 10:00 - 17:00
Special hours available
First Monday in February and the following day
Adults 2,500 yen
Senior discount (from 65 years old) 2,200 yen
High school, college and university students 2,500 yen
Elementary and junior high school students 1,200 yen
Infants 700 yen (from 3 years old to under elementary school age)
1 min. walk from Umino-nakamichi Municipal Ferry
3 minutes walk from Uminonakamichi Station