Kamogawa Sea World is a large scale comprehensive marine leisure center/museum equivalent facility located between the Tojo coast and the national highway No. 128 in Kamogawa city, Chiba Prefecture, Japan. It is operated by Granvista Hotels & Resorts Co., Ltd. [Wikipedia]
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The Kamogawa Seaworld is 5 min. by a courtesy bus from JR Awa-kamogawa Station. Awa-kamogawa Station is about 130 minutes train ride from the Tokyo Station.