Tokyo Sea Life Park is an aquarium (Kasai Rinkai Suizokuen in Japanese) located near Tokyo Disneyland. It is built on 190 acres of reclaimed land. It has a huge 2,200 tonne donut shaped tank allowing blue tuna to swim around uninhibited.
The aquarium is open from 9:30 – 17:00. It is closed on Wednesdays or Thursday if Wednesday is a public holiday. It also closes from December 29 to January 1.
Adults (16-64): 700 yen, Seniors (65+): 350 yen, Students (13-15): 250 yen, Children (0-12): Free
The aquarium is located in Kasai Rinkai Park. From Tokyo Station, take the Keiyo line train (about 15 minutes) and get off at JR Kasai Rinkai Koen Station, where it is a five minute walk from the station.
Phone: 03-3869-5152, Web: http://www.tokyo-zoo.net/english/