8 spots

Chugoku Aquarium Map

Every aquarium in Chugoku, ranked and placed on the map — all 8 of them, from the big names to the local tanks.

1YamaguchiShimonoseki City Aquarium (Kaikyokan)A waterfront aquarium housing the world's largest collection of pufferfish, featuring over 100 species.Beyond the famous fugu, explore "Penguin Village," one of Japan’s largest penguin habitats featuring Humboldt and King penguins. The facility overlooks the Kanmon Strait, offering a massive tank that recreates the strait’s whirlpools and a full-scale blue whale skeleton—one of the few displayed globally.What sets Kaikyokan apart is its seamless integration with the surrounding Kanmon Strait landscape. The dolphin and sea lion performance arena uses the actual sea as a backdrop, making it appear as though the animals are jumping straight out of the strait. For a truly unique sight, head to the "Underwater Tunnel" where you can watch penguins "fly" through the water above your head. Unlike many standard city aquariums, this facility focuses heavily on local biodiversity; the Strait Tank recreates the intense tidal currents of the area, a rare engineering feat. If you visit in the evening, the nearby Kanmon Bridge lights up, providing a romantic atmosphere from the viewing decks. Pro tip: The aquarium is steps away from Karato Market. It is best to visit the market for a fresh sushi breakfast early in the morning and then walk over to Kaikyokan right as it opens at 9:30 AM to beat the school groups. Don't miss the rare finless porpoises, which are native to these waters and known for their distinct "smiling" faces.View on Traveldoko
2ShimaneShimane Aquarium AQUASThe largest aquarium in Chugoku and Shikoku, famous for its bubble-ring-blowing beluga whales.Observe over 10,000 creatures from the Sea of Japan, including a massive shark tank with an undersea tunnel. Beyond the marine life, the facility serves as a major research hub for the rare North Pacific right whale and features extensive indoor and outdoor play areas for families.The aquarium's architectural design mimics the waves of the nearby Sea of Japan, seamlessly blending into the coastal Iwami Seaside Park. While most visitors flock to the beluga performance, don't miss the 'Mythical Sea' zone, which highlights the deep-sea species found specifically in the local waters of Shimane. Seasonal events often feature the 'Flying Penguin' display, where the tank's lighting makes the birds appear as if they are soaring through a night sky. For a unique souvenir, look for the exclusive beluga-themed plushies that commemorate their signature 'Happiness Ring.' Compared to urban aquariums in Tokyo or Osaka, AQUAS offers a much more spacious and relaxed pace, allowing for intimate viewing without the crushing crowds. If you are visiting in summer, the adjacent white sand beach is perfect for a dip after your tour. Pro tip: Check the feeding schedule for the Cape penguins early, as their 'parade' across the facility is a highlight for photographers seeking close-up shots without glass barriers. The facility also houses a specialized laboratory where you can learn about the local marine ecosystem and conservation efforts.View on Traveldoko
3HiroshimaMiyajima Public Aquarium (Miyajimarine)A traditional shrine-style aquarium showcasing the unique marine life of the Seto Inland Sea.Beyond standard tanks, look for the iconic oyster raft exhibit—a tribute to Hiroshima's famous industry. You can also meet rare finless porpoises and watch sea lions perform against the island’s scenic backdrop. It offers a peaceful, air-conditioned alternative to the crowded main shrine paths.For a more atmospheric experience, head to 'Hatsukoi-an,' a beautifully designed space that blends Japanese aesthetics with colorful goldfish displays and light art. Unlike the massive urban aquariums in Tokyo or Osaka, Miyajimarine is intentionally intimate, reflecting the island’s spiritual 'harmony with nature' philosophy. A pro tip for visitors: the aquarium is located about a 10-minute walk past the exit of Itsukushima Shrine. Because many tourists turn back after seeing the floating torii gate, this area remains remarkably quiet. Don't miss the outdoor 'Healing Forest' area, where you can see Humboldt penguins in a setting that feels more like a manicured Japanese garden than a standard zoo enclosure. If you’re traveling with children, the interactive touch pools allow kids to handle starfish and sea cucumbers found in the local waters. It’s the perfect way to round out an island visit, providing deep context to the sea that surrounds the shrine. Visiting in the late afternoon is recommended to avoid the school groups that often frequent the facility in the mornings.View on Traveldoko

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Image credits

3. Miyajima Public Aquarium (Miyajimarine) — そらみみ / CC BY-SA 4.0
4. Tottori Karo Crab Aquarium — Yuniko / CC BY-SA 3.0
5. Gobius Lake Shinji Nature Museum — 運動会プロテインパワー / CC BY-SA 4.0
6. Tamano Marine Museum — Totti / CC BY-SA 4.0
7. Nagisa Aquarium — Totti / CC BY-SA 4.0