An environmental aquarium at Onahama Port in Iwaki. It showcases a wide range of waterside nature and wildlife, from the rivers and sea of Fukushima to the Shiome no Umi, where the Kuroshio and Oyashio currents meet, as well as northern seas and coral reefs. It's open year-round, and a visit typically takes 1.5 to 3 hours.
The highlight is the large Shiome no Umi tank recreating the sea where the Kuroshio and Oyashio currents meet. At the sushi restaurant Shiome no Umi in front of the tank, you can eat sushi while watching the fish swim. There's also the Oyashio Ice Box showing cold-water creatures, marine mammals and seabirds of the northern seas, and the Goldfish Pavilion, plus the hands-on kids' facility Aquamarine Egg and the outdoor Wakuwaku Hajimari no Mori.
Entry until 16:30. Extended hours on some days during Golden Week, August, etc.
Entry until 16:00
Hours vary by day and season. Check the official website before you go.
Groups (20+ people): ¥1,550
Groups (20+ people): ¥750
Check eligibility on the official discounts page
Prices include tax and may change. Check the official website before buying.
From March 21, closing time changes to 17:30.
Some years have had a free-admission day for elementary, junior high, and high school students in August (August 21 in 2026).
Closes at 17:30 (entry until 16:30) through November 30.
Closes at 17:00 (entry until 16:00) from December 1 to March 20.
PR7.8
PR7.2Prices and availability are shown on Agoda.
ZooTohoku ・ Akita City, Akita
A zoo in Omoriyama Park run by Akita City. As of August 2026, it keeps 524 animals of 88 species. Admission is free for high school students and younger, and with the Anipa amusement park and large play equipment on site, families can spend a whole day here.
AquariumTohoku ・ Aomori & Hakkoda
An Aomori Prefecture-run aquarium in Asamushi Onsen, facing Mutsu Bay. Admission is free for high school students and younger, and just ¥1,200 for general visitors. It's about a 10-minute walk from Asamushi-Onsen Station on the Aoimori Railway and about 20 minutes by train from Aomori Station, making it easy to combine with sightseeing in Aomori City.
AquariumTohoku ・ Tsuruoka, Yamagata
An aquarium in Tsuruoka facing the Sea of Japan, known for its jellyfish exhibits. After a five-month closure, it reopened after renovation on April 1, 2026 under the nickname Tohoku Epson Aquarium Kamosui. It displays about 100 species of jellyfish.
ExperienceTohoku ・ Morioka & Koiwai
The visitor area of Koiwai Farm in Shizukuishi, Iwate Prefecture. You can tour cattle barns designated as Important Cultural Properties, ride horses, and join programs that take you around the farm. It's about 35 minutes by bus from Morioka Station, or about 15 minutes by car from Morioka IC.
AquariumTohoku ・ Oga, Akita
An aquarium on the Sea of Japan coast of the Oga Peninsula. It has a large tank recreating the Oga sea, exhibits of polar bears, seals, penguins, and more, and a museum devoted to hatahata (sandfish), an Akita specialty. From Akita Station, take the JR Oga Line to Oga Station (about 1 hour), then a bus or shared taxi.
AquariumTohoku ・ Sendai & Matsushima
An aquarium near Sendai Port. Across two floors, it shows sea life from Tohoku, Japan, and the world's oceans, starting with the large Sanriku-themed tank Inochi Kirameku Umi. It's about 18 minutes from Sendai Station to Nakanosakae Station on the JR Senseki Line, so it's easy to fit in between sightseeing in the city.
ExperienceTohoku ・ Iwaki, Fukushima
A hot spring and pool leisure complex in Iwaki, Fukushima Prefecture. A single admission ticket gives access to the Water Park's pools and water slides, the Spring Park hot spring area, the open-air bath Edo Jowa Yoichi, and more. Polynesian shows run from midday into the night, so you can enjoy it on a day trip or an overnight stay.
ZooTohoku ・ Sendai & Matsushima
A zoo run by Sendai City on Yagiyama hill. It's close to Yagiyama Zoological Park Station on the Tozai Subway Line, about 12 minutes from Sendai Station. General admission is an affordable ¥480, making it a good half-day trip from central Sendai.
ZooTohoku ・ Shiroishi, Miyagi
A facility in Shiroishi, Miyagi Prefecture, where you can see foxes. The foxes roam freely inside, and you walk among them. Admission is free for elementary school students and younger.
Hours, prices and access are based on official and other primary sources. They may change, so check the official website before you go.
Last checked: 2026-10-02
