Kamogawa Seaworld

What to know

Kamogawa Seaworld is a large aquarium located on the Boso Peninsula, facing the Pacific Ocean. It houses around 11,000 sea creatures across three themed zones: Eco Aquaroam, Tropical Island, and Rocky World, each designed to mimic natural habitats. Regular shows take place in three outdoor stadiums and an underwater theater.

The aquarium boasts several unique features. The Eco Aquaroam uses wave generators in its tanks to replicate river conditions around the Boso Peninsula. Tropical Island, home to the largest indoor tank, simulates a coral reef where visitors can feel like they are diving among tropical fish. An interactive area lets guests paint a digital fish and watch it swim on a large screen.

Popular live performances feature killer whales (orcas), beluga whales, dolphins, and sea lions. Shows start every half hour at different stadiums, making it easy to move from one to the next. The largest venue is the Ocean Stadium, where killer whale performances are held.

Visitors can also watch scheduled animal feedings and enjoy close-up encounters like feeding, touching, or taking photos with marine animals. These interactions have limited spots and require additional fees.

Awa-Kamogawa Station is the nearest station to Kamogawa Seaworld. Free shuttle buses run every 40 minutes, taking about five minutes. The fastest route from Tokyo is via direct JR Wakashio limited express trains (100 minutes, 4000 yen one way from Tokyo Station, every 1-3 hours, seat reservations required). Local trains take about three hours, cost 2420 yen one way, and require a transfer at Soga Station. Both train options are covered by the Japan Rail Pass and JR Tokyo Wide Pass.

Keisei Bus and Nitto Kotsu operate hourly highway buses from Tokyo (Tokyo Station) to Kamogawa Seaworld. The one-way trip takes about two hours and costs 2600 yen. The Aqusea Ticket combines a round-trip bus ride with admission for 7000 yen, saving 1500 yen. It can be purchased at the Bus Terminal Tokyo Yaesu in front of Tokyo Station.