Located by the sea, the Amakusa Underwater Aquarium SEA DONUT has a very distinctive design. From a distance, you can see the entire building floating on the deep blue water. Nearby, there’s also a small bus decorated with cute Kumamon and dolphin illustrations, giving it a playful feel.
When I visited, the keepers happened to be feeding the dolphins, and watching them interact so attentively was incredibly soothing. There’s also a rest area nearby where you can order drinks and light meals. Sitting there and quietly taking in the unique floating aquarium and ocean view felt leisurely and relaxing. It’s a very distinctive attraction with a charming island atmosphere.




















