A surprisingly entertaining and informative aquarium located about 30 min [by bus] from Nagasaki station. A 12-m deep tank dominates the entry way. You can observe a variety of penguins from the vantage of underwater. A number of other aquaria contain many species of fish and invertebrates found locally, as well as a huge tank containing giant catfish (pla bluk) from the Mekong River in Thailand. The building is adjacent to a delightful sandy beach that could make a day with kids full and exciting.