The Shin-Enoshima Aquarium, affectionately called 'Enosui,' sits on Katase Beach in Fujisawa, Kanagawa, facing the waters of Sagami Bay. It is best known for its huge Sagami Bay Tank with a shimmering school of about 8,000 sardines, one of Japan's largest jellyfish displays, and dolphin shows staged against an ocean (and, on clear days, Mt. Fuji) backdrop. It's a 3-minute walk from Katase-Enoshima Station on the Odakyu Line, making it easy to combine with Enoshima sightseeing.
Sagami Bay Giant Tank: around 100 species and 20,000 creatures, headlined by a swirling school of 8,000 sardines enhanced with lighting and wave effects
Jellyfish Fantasy Hall & sphere hall: 14+ species in a dreamlike, dimly lit space, among the largest jellyfish exhibits in Japan
Dolphin show: about 15 minutes in the open-air Aqua Stadium with an ocean (and sometimes Mt. Fuji) view, typically 3–5 times daily depending on season and weather
Touch pool and hands-on programs: touching sharks and marine specimens, dolphin 'handshakes,' capybara feeding, popular with families
Seaside setting with re-entry allowed (hand stamp), easy to pair with a walk on Katase Beach or over to Enoshima Island
Good to know
RulesFlash photography aimed at animals or tanks is generally prohibited, as sudden bright light can startle and injure or stress the creatures. Turn off your flash in front of indoor tanks.
SafetyThe aquarium is on low-lying coastal ground in an earthquake/tsunami zone. Its rooftop (about 15 m elevation) is a designated tsunami refuge for roughly 1,000 people; in a quake, follow staff guidance to evacuate to the 2nd floor or rooftop.
SeasonThe dolphin show and other outdoor programs may be changed or cancelled on the day in bad weather or typhoons. If the show is your goal, check the official site or on-site notices for that day before visiting.
MannersThe dolphin show is popular and seats fill up 20–30 minutes before start time. Front rows can get splashed, so choose your seat accordingly.
RulesDuring peak periods (e.g., Golden Week), timed-entry reservations may apply and re-entry can be restricted during reserved windows. Conditions vary on busy days, so check the latest notices.
SeasonWeekends, summer holidays, and long weekends bring long entry lines from around midday. Arriving at opening (9–10 a.m.) is more comfortable; on crowded days strollers can be hard to maneuver.
Practical info
Admission (verify latest): Adults ¥2,800 / High school ¥1,800 / Elementary–junior high ¥1,300 / Toddlers (3+) ¥900; under 3 free. Hours (verify latest): Mar–Nov 09:00–17:00, Dec–Feb 10:00–17:00, subject to seasonal and event changes. Allow about 2–3 hours. Free stroller loan on the day. Buying online can cut the ticket queue.
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