Izu Mito Sea Paradise
An aquarium built into a natural cove on Suruga Bay, Japan's deepest.
piggybackjapan.com
Izu Mito Sea Paradise
SaveAn aquarium built into a natural cove on Suruga Bay, Japan's deepest.
Dolphins jump with Mount Fuji sometimes visible across the water behind them.
How was it with your kids?
Not greatGreat
- ElevatorElevator：not checked
- Stroller OKStroller friendly：with conditionsconditions
- RentalStroller rental：not checked
- NursingNursing space：with conditionsconditions
- ChangingDiaper changing table：with conditionsconditions
- Diaper binDiaper disposal bin：not checked
- Family WCFamily restroom：not checked
- Kids' toiletKids' toilet seat & step stool：not checked
- Own foodOutside food allowed：with conditionsconditions
- EnglishEnglish support：not checked
Green = we confirmed it. Grey = not checked yet. Grey with a line through = the place does not have it.
evidence & sources (8)
- Official: Stroller friendly, Nursing space, Diaper changing table
- Official: Best-fit ages (guide)
- Official: main site
The permanent displays hold about 300 kinds of fish, and the bay outside drops to 2,500 metres. A deep-sea tank comes with a touch pool where children can handle a giant spider crab. Jellyfish drift in a room of their own, and a walk-through enclosure puts you inside the penguins' living space. Dolphins and sea lions perform, and there are sessions to feed them or shake hands with an otter. Children's areas include an indoor sandpit and a pool where they play with fish.
| Stroller friendly | Yes | Free stroller loan for children under 24 months — ask at the ticket window. Numbers are limited and it cannot be reserved. Ramps are fitted throughout, but some are steep and some routes go the long way round | Web-checked | checked Aug ’26 | mitosea.com |
|---|---|---|---|---|---|
| Nursing space | Yes | A nursing room in 'Mito-C mini Paradise', the kids' corner | Web-checked | checked Aug ’26 | mitosea.com |
| Diaper changing table | Yes | Changing tables in the toilets at the main entrance and beside the Dolphin Sea show stage, and in 'Mito-C mini Paradise' | Web-checked | checked Aug ’26 | mitosea.com |
| Outside food allowed | Yes | You can bring your own lunch. Tables, chairs and benches are in 'Mito-C mini Paradise' and around the Dolphin Sea, and the seating at the Show Stadium and the Dolphin Sea show stage can be used too. There is no restaurant — a takeaway counter beside the Show Stadium sells curry, pasta, hot dogs, chips, ice cream and coffee | Web-checked | checked Aug ’26 | mitosea.com |
| Indoor / outdoor | Indoor & outdoor | The outdoor show arenas are roofed, so shows run in the rain. Some other areas have no roof, so bring an umbrella — a limited number are lent out. Footing gets slippery in the wet | Web-checked | checked Aug ’26 | mitosea.com |
| Stroller access notesExtra info — guide only | Yes | Free wheelchair loan at the ticket window (limited numbers, no reservations). Ramps are fitted throughout but some are steep or take a longer way round. Guide dogs and other assistance dogs may come in, with the marking required by Japanese law. Coin lockers (paid) are beside the main entrance. Multi-storey and two surface car parks; vehicles over 2.1 m high should speak to staff first | Web-checked | checked Aug ’26 | mitosea.com |
| Best-fit ages (guide)Extra info — guide only | Yes | The kids' corner play equipment is for children up to Year 3 of primary school | Web-checked | checked Aug ’26 | mitosea.com |
| Lost-child supportExtra info — guide only | Yes | Staff can put out a paging announcement inside the building — ask any member of staff | Web-checked | checked Aug ’26 | mitosea.com |
| Diaper disposal bin | Not checked yet | ||||
| Kids' toilet seat & step stool | Not checked yet | ||||
| Elevator | Not checked yet | ||||
| English support | Not checked yet |
Worth a look before you go
Japanese · opens translatedFirst-hand
Izu Mito Sea Paradise: Japan's second-oldest aquarium turns out to suit children
In at 13:06, out at 17:00 with boys of 7, 5 and 2: under four hours covered it all, two shows, feeding, kids' corner.
akichanryokou-kokunai.com2025
Japanese · opens translatedFirst-hand
Izu Mito Sea Paradise alone with a 1- or 2-year-old: what to do, prices, crowds, parking
A mother alone with a one-year-old: the aisles are wide enough for a stroller, and it thins out 9-10:00 or around noon.
kosodate-oneopesunday.com2026
Japanese · opens translatedFirst-hand
Izu Mito Sea Paradise with a 5-year-old and a 2-year-old: the feel of the place and how busy it gets
No restaurant: the takeaway counter runs to chips, croquettes and churros. Show seats start filling ten minutes ahead.
otofubrog.com2025
Japanese · opens translatedFirst-hand
A dad's report: family time at Izu Mito Sea Paradise, with the kids beside themselves
The pool where children chase live fish soaks them — bring towels and a change of clothes. Ball pit and sandpit too.
note.com2025
Izu Mito Sea Paradise · Links & reads ▾
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Basics
- Fee：¥2,600 for adults (junior high and up) and ¥1,300 for ages 4 to primary school; free up to age 3. Buying on the web ticket site costs ¥2,400 / ¥1,200. Seniors 65 and over pay ¥2,200 (on-site purchase only, ID needed, not combinable). A LINE coupon takes ¥200 off adults and ¥100 off children. Visitors with a disability, and one carer each, pay half the standard rate. A SEIBU PRINCE CLUB card takes ¥400 off adults and ¥200 off children. Parking is ¥600 per entry (¥1,000 from 8 to 16 August 2026). Prices were revised on 1 April 2026■
- Hours：Open all year in principle, with maintenance closures in winter announced on the official site. Opening hours change with the season — the official home page shows the day's hours, which on 14 August 2026 were 8:30-17:30 with last entry at 16:30. Re-entry is allowed on the same day's ticket, up to 30 minutes before closing. Allow about 1.5 to 2.5 hours to go round■
- Time needed：120 min
- Booking：Tickets are sold at the ticket window; buying on the web ticket site costs less (show it at the window). Stroller, wheelchair and pet-carrier loans cannot be reserved — ask at the ticket window■Official booking site ↗