Enoshima Aquarium (Enosui) is located on the landside of Katase Coast, a 10-minute walk from the Enoden Enoshima Station. The fish schools of Sagami Bay, the ethereal glow of jellyfish, deep-sea exploration, and the seaside dolphin viewing area are worth dedicating a half-day to experience, rather than merely taking a quick photo of the exterior before visiting the island.
The main Sagami Bay tank: watch the fish, then discover the sea’s layers
The exhibition begins with a realistic view of Sagami Bay, gradually moving from rocky reefs and shorelines into deeper waters. In the large aquarium, the sardine schools shift like a shimmering silver curtain that breathes, with larger fish passing through; by lingering at different floor levels and angles, one can truly understand this sea—far more so than simply taking photos at the main viewing window.
Jellyfish Fantasy Hall: slow down with drifting life
A semicircular dome and the central spherical Jellyfish Planet tank create a soft, deep-blue space. Behind the beauty are years of jellyfish husbandry and research. The nearby jellyfish science exhibits extend the experience into their growth and ecology. Lighting shows and displayed species follow the day’s arrangements.
The dolphin arena: sea, Enoshima and sky in one view
The viewing platform connects the performance pool and Shonan sea views, and Mount Fuji can be seen when weather conditions are favorable. Upon arrival, check the daily performance schedule first, then plan the aquarium circuit; the viewing seats have a roof, but the front rows may still get splashed with water. Animal conditions or weather may lead to schedule changes, and the on-site timetable will be the most accurate.
Shinkai 2000: a craft that truly explored the deep sea
On-site exhibits include the actual vessel "Shinkai 2000," allowing visitors to view the hull and cockpit structure up close. It has carried out multiple missions in Sagami Bay; together with the deep-sea biological zones, the calm sea surface comes alive with an imagined depth extending down to two kilometers below.
From the shirasu whitebait of Koshigoe, chasing after their lives
"Shirasu Science" turns the shirasu whitebait served on Shonan dining tables into live, observable specimens, showcasing growth and reproduction research. After having eaten Koshigoe shirasu whitebait rice bowl the previous day, visitors can see the fish swimming the next day—creating a fascinating and engaging connection along the route. Family travelers may also arrange optional excursions to the penguin, otter, and turtle zones.
Half-day aquarium, half-day coast
We recommend allowing 2–3 hours, with longer for a leisurely visit or a family trip. Light meals are sold inside, and Awatan Café is beside the exit. On ordinary dates, follow the aquarium's re-entry procedure. Re-entry is unavailable during the 10:00–15:00 reservation period on September 20–22, 2026. Most tanks and stands are sheltered in rain, but the sea-turtle area and some paths remain outdoors.
- Regular hours
- From September 1 to 18, 2026, and from September 24 to November 30, 9:00–17:00, last admission at 16:00
- Holiday period
- September 19–22, 8:00–19:00, last at 18:00; September 23, 8:00–17:00, last at 16:00
- Admission
- Adults ¥2,800; high school students ¥1,800; elementary and junior high school students ¥1,300; preschool children aged 3 and over ¥900.
- Reservations
- From 10:00 to 15:00 on September 20–22, 2026, free web entry reservations are required for visitors aged 3 years and above; holders of tickets and card-based annual passes also need to make reservations, and digital annual passes are not valid during this period.
- Closed
- Annual maintenance scheduled from January 18 to 24, 2027; other temporary repairs to be announced separately.
- Suggested visit length
- 2–3 hours (editor's recommendation)
Entrance reminder for the 2026 September holiday period
On September 20–22, 2026, visitors aged 3 and over must make a free online entry reservation in advance for 10:00–15:00. Ticket holders and holders of card-type annual passes also need one; digital annual passes cannot be used during this period. Children aged 0–2 do not need a reservation, and re-entry is unavailable during the reservation period. Check that day's announcements for other dates and times.
The aquarium’s entry reservation notice ↗Verification: September 15, 2026