Tokyo · IkebukuroNo.352★★Open in map →
Sunshine Aquarium
A rooftop aquarium in the Sunshine City complex in Ikebukuro, holding around 550 species. Its signature exhibits are an overhead ring tank where sea lions swim above visitors and a curved tank where penguins appear to fly across the Tokyo skyline.
Sunshine Aquarium sits on the upper floors and roof of a building inside the Sunshine City complex in Ikebukuro — not beside the sea, not in a park, but forty-odd metres above one of Tokyo's busiest commercial districts. It opened in the late 1970s as one of the first aquariums in the world built into a high-rise, and a major renovation gave it the theme it works to now: an oasis in the sky. Some 550 species and around 23,000 animals are held across an indoor floor and an open-air rooftop garden. The rooftop is where the design pays off. A ring-shaped tank called the Sunshine Aqua Ring is suspended overhead so that sea lions swim in a circle directly above visitors' heads, seen from below against open sky. Nearby, a curved acrylic tank holds penguins at eye level with the skyline behind them, so that the birds appear to be flying between the office towers of Ikebukuro. Neither effect would be possible at ground level, and neither exists in quite this form anywhere else in Tokyo.
Why it stays quiet
Japan has larger and more famous aquariums, and this is not the place to come for scale. What it has instead is a specific idea executed well: putting the tanks above the visitor and the city behind the animals, so that the backdrop is skyline rather than painted wall. It is also unusually easy to reach — a covered walk from a major interchange station, in a complex that also holds shops, restaurants and a planetarium, which makes it the practical choice on a day when the weather turns.
Background & history
The aquarium opened in the late 1970s as part of the Sunshine City development, built on the site of the former Sugamo Prison and conceived as one of Japan's first vertical urban complexes. Placing an aquarium on a rooftop was then an untested idea, and it remains one of very few in the world. A large-scale renovation in the 2010s introduced the 'oasis in the sky' concept and the rooftop tanks that the aquarium is now known for.
What to look for — in walking order
- Sunshine Aqua Ring
- A doughnut-shaped tank suspended overhead on the rooftop level. Stand underneath and the sea lions circle directly above you with open sky behind them. Wait for one animal to make a full lap rather than moving on after a single pass — the loop is short and the best angle comes when it turns.
- Penguins over the skyline
- A curved acrylic tank positioned so that the water sits at eye level with Ikebukuro's office towers behind it. From the right spot the penguins read as flying between buildings. Late afternoon light works best, when the towers catch the sun rather than silhouette against it.
- The indoor 'Journey of the Sea' floor
- The enclosed floor below holds the main collection — a large ocean tank, tropical reef displays and cold-water species. Do this floor first and finish on the roof, so you end outdoors rather than descending back into the building.
- Otters, capybara and the rooftop garden
- The open-air level is landscaped as a garden with smaller enclosures around it, including otters and capybara. It doubles as the resting point of the visit, with the Ikebukuro skyline on all sides — the reason the 'oasis' framing is not just marketing.
How to enjoy it
Feeding times and keeper talks are the difference between a good and an ordinary visit here — the daily schedule is posted at the entrance and on the official site, and building your route around two or three of them costs nothing. Weekends and Japanese school holidays are genuinely crowded; a weekday afternoon is markedly calmer. Because the aquarium is inside a covered complex with shops, restaurants and a planetarium, it is the reliable fallback on a rainy day, and you can move between all of them without going outside. If you want the penguin tank against warm light rather than flat grey, aim for the last two hours before closing.
How to actually get there
- Shinjuku Station → Ikebukuro Station (JR Yamanote Line, ~9 min).
- Ikebukuro Station → Higashi-Ikebukuro Station (Tokyo Metro Yurakucho Line, ~2 min) — or walk ~10 min from Ikebukuro East Exit.
- Higashi-Ikebukuro Exit 6/7 → Sunshine City (walk, ~5 min) → lift to the aquarium entrance floor.
- Yamanote Line to Ikebukuro, then walk or one metro stop
- Shinjuku Station →(JR Yamanote Line, ~9 min)→ Ikebukuro Station → follow signs for the East Exit and Sunshine City, about a 10-minute covered and street-level walk. Alternatively, take the Tokyo Metro Yurakucho Line one stop from Ikebukuro to Higashi-Ikebukuro Station, from where Exit 6 or 7 leads to Sunshine City in about 5 minutes. Total ~20 min from Shinjuku either way.
- Return via Ikebukuro Station
- Ikebukuro is one of Tokyo's largest interchanges — the JR Yamanote and Saikyo lines plus three metro lines and two private railways all meet there. Trains run frequently until past midnight, so the aquarium's evening closing time leaves plenty of margin.
Before you go
- Cash
- Tickets are sold at the counter and online; cards and IC payment are accepted. Buying online in advance saves queueing at the ticket window on weekends and school holidays.
- Closing days
- Open daily including most public holidays, with seasonal opening hours — longer in summer, shorter in winter. Last admission is one hour before closing. Check the official site for the current day's hours before setting out.
- Another way
- Higashi-Ikebukuro Station (Yurakucho Line, Y-10) Exit 6/7 is the closest approach at about 5 minutes on foot. Higashi-Ikebukuro-Yonchome stop on the Toden Arakawa Line tram is also about 5 minutes away, and is a pleasant approach if you are coming from Waseda or Oji.
- After you get off
- From Higashi-Ikebukuro Station, Exits 6 and 7 connect toward Sunshine City; follow signs inside the complex to the World Import Mart building and take the lift to the aquarium entrance floor.