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Kamo Aquarium (Jellyfish Dream)
🦊 Animals

Kamo Aquarium (Jellyfish Dream)

📍 Yamagata, Tsuruoka

A white aquarium on the Tsuruoka coast that holds the world's largest jellyfish collection — a Guinness record 50-plus species — climaxing in a five-metre 'Jellyfish Dream' tank where 2,000 moon jellies drift in slow, glowing circles.

On the coast west of Tsuruoka stands a sleek white building that came back from the brink of closure by betting everything on the most unlikely of stars: jellyfish. Today the Kamo Aquarium holds the largest jellyfish collection in the world — a Guinness-certified 50-plus species — and it’s one of the most quietly mesmerizing places in Tohoku.

Why It’s Interesting

Room after room glows with backlit tanks of drifting, translucent jellies of every size and shape, building to the showstopper: the “Jellyfish Dream” tank, a five-metre circular drum in which some 2,000 moon jellyfish pulse and turn in slow blue light. Kids press their faces to the glass; adults forget to leave. There’s also a sea-lion show and a touch pool, but the jellyfish are why the world comes.

Best Time to Visit

Year-round, and especially welcome in summer — it’s indoor, cool, and calm when the August heat is fierce.

Getting There

Bus or drive from Tsuruoka Station out to the Kamo coast. Pair it with the Shonai beaches or Mt. Haguro.

📸 Mon-chan's camera roll

Snapshots from our very good boy on the road.

Glowing moon jellyfish drifting in a large circular dark aquarium tank
A whole museum of jellyfish, ending in a giant glowing tank. Hypnotic.
Mon-chan and Cinnamon the squirrel watching glowing jellyfish in a dark tank
Cinnamon pressed his nose to the glass and whispered 'YEAH!' We stayed an hour.
🏷️ Aquarium 🏷️ Jellyfish 🧒 Kids 🏷️ Family Friendly 🏠 Indoor 🌧️ Rainy Day 🏷️ Summer

Where it is

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