Tokyo With Kids Beyond Disney: Free Parks & Rainy-Day Ideas in Koto and Edogawa

If you are visiting Tokyo with kids and want a break from theme-park queues, Koto and Edogawa wards in east Tokyo have some of the city’s best free parks, a free zoo, an aquarium where under-12s go free, and plenty of cheap rainy-day options. Most are only 10–30 minutes from Tokyo Disney Resort or Kinshicho, and they are full of local families rather than tour groups. Here is our local guide, with prices and closing days checked for autumn 2026.

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Updated October 2026 — reviewed by Sunny Pham Sensei (Lệ Nhật Sensei), Japan National Acupuncture License No. 196186 (鍼師) / 195591 (灸師). Written by the Fuji Wellness team, based locally in Edogawa City, east Tokyo.

East Tokyo with kids at a glance

Place	Ward	Cost	Closed	Best for
Kasai Rinkai Park	Edogawa	Free	Open all the time	Big lawns, seaside, picnics
Tokyo Sea Life Park (Kasai Rinkai Aquarium)	Edogawa	Adults ¥700; elementary age and under free	Wednesdays	Penguins, tuna tank
Diamond and Flower Ferris Wheel	Edogawa	¥800 (age 3+)	Some Wednesdays	Views of Disney, Skytree, the bay
Edogawa Natural Zoo, Gyosen Park	Edogawa	Free	Mondays	Red pandas, petting corner, toddlers
Subway Museum, Kasai	Edogawa	Adults ¥220, children ¥100	Mondays	Rainy days, train fans
Oshima Komatsugawa Park	Koto/Edogawa	Free	Open all the time	Ship-themed climbing area
Kiba Park	Koto	Free	Open all the time	Playgrounds, suspension bridge
Fukagawa Edo Museum	Koto	Adults ¥400	2nd and 4th Mondays	Walk-through Edo town
Sumida Aquarium	Sumida	Adults ¥2,700, ages 6–15 ¥1,400	Rarely	Rainy days near Skytree

Prices are for autumn 2026 and are from each facility’s official or ward page. When a Monday or Wednesday closing day falls on a public holiday, most facilities open and close the next day instead.

Kasai Rinkai Park: the big free day out

Kasai Rinkai Park sits on Tokyo Bay, one stop from Maihama (Tokyo Disney Resort) on the JR Keiyo Line. Get off at Kasai-Rinkai-Koen Station and you are in the park. It is free and has no gates, so you can come and go as you like.

Tokyo Sea Life Park (Kasai Rinkai Aquarium)

The aquarium’s glass dome is one of the most recognisable buildings on the bay. Inside, the big draws are the doughnut-shaped tuna tank and one of Japan’s largest penguin exhibits.

Hours: 9:30–17:00 (last entry 16:00)
Closed: Wednesdays, and over the New Year from December 29 to January 1
Admission: adults ¥700, 65 and over ¥350, junior high students ¥250; elementary school children and younger are free
Free days: October 1 (Tokyo Citizens’ Day) and October 10 (the aquarium’s anniversary)

Renovation status: a new aquarium building is being built nearby and is planned to open in 2028. The current aquarium is open as usual until then. Check the official aquarium site before you go, as some areas may change during the work.

Diamond and Flower Ferris Wheel

At 117 metres, this is one of Japan’s tallest Ferris wheels. A ride takes about 17 minutes and on clear days you can see Tokyo Disney Resort, Tokyo Skytree, the bay bridges and sometimes Mount Fuji.

Cost: ¥800 per person from age 3
Hours: from 10:00; last boarding is 19:00 on weekdays and 20:00 on weekends, holidays and school holidays
Closed: some Wednesdays (the closing pattern changes by month)

The rest of the park

There are huge lawns, a bird sanctuary with observation hides, and a man-made beach, Kasai Marine Park, across a footbridge. Swimming is not the main attraction, but toddlers love digging in the sand. Bring a picnic: food options are limited, especially in winter.

Gyosen Park: a free zoo in a Japanese garden

Gyosen Park in Kita-Kasai is one of Edogawa’s local secrets. The Edogawa Natural Zoo inside it is free, small and perfect for younger children: red pandas, penguins, monkeys and a petting corner where children can gently touch guinea pigs and other small animals at set times.

Hours: 10:00–16:30 on weekdays; from 9:30 on weekends and holidays; closes at 16:00 from November to February
Closed: Mondays (or the next day if Monday is a holiday) and December 29 to January 1
Access: about 15 minutes on foot from Nishi-Kasai Station (Tokyo Metro Tozai Line)

The same park has the Heisei Garden, a free Japanese garden with a pond and a tea house, which is lovely for parents in autumn. Read more in our Gyosen Park and Heisei Garden guide.

Rainy-day ideas in Koto and Edogawa

Subway Museum (Kasai)

Right under Kasai Station on the Tozai Line, the Tokyo Metro Subway Museum is cheap, indoors and a hit with train-loving kids. There are vintage subway cars to climb into, a driving simulator and a large model railway.

Hours: 10:00–17:00 (last entry 16:30)
Closed: Mondays (or the next day after a holiday) and December 30 to January 3
Admission: adults ¥220, children (age 4 to junior high) ¥100

Fukagawa Edo Museum (Kiyosumi-Shirakawa)

A life-size reconstruction of an 1840s Fukagawa neighbourhood, complete with row houses, a boat dock and a fire lookout tower, all indoors. Children can take their shoes off and step into the houses. Lighting changes through the day from dawn to dusk.

Hours: 9:30–17:00 (last entry 30 minutes before closing)
Closed: 2nd and 4th Mondays, and over the New Year
Admission: adults ¥400
Access: 3 minutes from Kiyosumi-Shirakawa Station (Exit A3)

Sumida Aquarium (Tokyo Skytree Town)

Not in Koto or Edogawa, but just next door in Sumida City, this compact, well-designed aquarium inside Tokyo Solamachi works well on a wet afternoon. It is more expensive than Kasai (adults ¥2,700, elementary and junior high ¥1,400, age 3 and up ¥900), so pair it with a Skytree visit.

Edo-Tokyo Museum (Ryogoku)

Reopened in March 2026 after a long renovation, this huge history museum has a life-size bridge, model towns and hands-on exhibits. Junior high school students and younger enter the permanent exhibition free; adults pay ¥800.

teamLab Planets (Toyosu, Koto)

Walk barefoot through water and mirror rooms. Children usually love it, but book timed tickets in advance and expect to wade in knee-deep water (shorts are best). The museum is currently scheduled to stay open until the end of 2027.

Free parks for running off energy

Oshima Komatsugawa Park. A big park on the Koto–Edogawa border, 3 minutes from Higashi-Ojima Station (Toei Shinjuku Line). The highlight is an athletic area with climbing frames shaped like large and small ships, suitable from kindergarten age up, next to a huge open lawn. It is also one of the closest big parks to our clinic.
Kiba Park. A long, green park in Koto with playgrounds at the south end and a suspension bridge across the road. The Museum of Contemporary Art Tokyo is at the north end (closed Mondays) if one parent wants a quiet hour.
Sarue Onshi Park. A former timber yard turned park, a 10-minute walk from Kinshicho, with playgrounds and plenty of shade.

Practical tips: strollers, elevators and timing

Elevators. Most major stations have at least one elevator, but it may be at the far end of the platform. Look for the yellow signs or the station map near the ticket gates.
Toei buses are stroller-friendly. Most are low-floor buses, and folded or unfolded strollers are generally allowed. Board at the front, and ask the driver if you need a moment.
Avoid rush hour. Trains between 7:30 and 9:30 on weekdays are very crowded. Leave later in the morning when travelling with a stroller.
Child fares. Children under 6 travel free on trains and buses with a paying adult (up to two per adult). Children aged 6–11 pay child fares; a child IC card can be set up at a station office with a passport.
Closing days. Japanese museums and zoos often close on Mondays, and the Kasai aquarium on Wednesdays. Plan your week around them.
Rest. Every place above has benches and, usually, a baby room or nursing room. Ask staff for the “baby room” (bebii ruumu).

Parents need a break too: a family-friendly session

Carrying a toddler, pushing a stroller up station stairs and walking 20,000 steps a day takes a toll on parents’ backs, necks and shoulders. Fuji Wellness is a small acupuncture clinic in Matsushima, Edogawa City, a short taxi ride from Oshima Komatsugawa Park and on the 錦25 bus route that runs to Kasai Station (for the Subway Museum).

Families often visit together: one parent has a session while a partner and the children wait. Please mention it when you book so we can plan the timing. Consultations are in English, Vietnamese or Japanese, by appointment only. The clinic is open Monday to Thursday 9:00–12:00 and 14:00–17:00, and Saturday, Sunday and public holidays 8:00–12:00; it is closed on Fridays.

Staying near Disney? It is about 25 minutes by taxi; see our Tokyo Disney Resort visitor page and our guide on how to get to Fuji Wellness.

Frequently asked questions

What are free things to do with kids in east Tokyo?

Kasai Rinkai Park, Oshima Komatsugawa Park, Kiba Park and Sarue Onshi Park are free. The Edogawa Natural Zoo in Gyosen Park is free and great for toddlers. At Tokyo Sea Life Park in Kasai Rinkai Park, elementary school children and younger enter free; adults pay ¥700.

Is Tokyo Sea Life Park closed for renovation?

No. A new aquarium building is planned to open in 2028, and the current aquarium stays open until then, from 9:30 to 17:00 (last entry 16:00). It is closed on Wednesdays and from December 29 to January 1.

What can kids do in Tokyo on a rainy day?

In east Tokyo, good rainy-day options are the Subway Museum at Kasai Station (adults ¥220, children ¥100), the indoor Fukagawa Edo Museum, the Edo-Tokyo Museum in Ryogoku (free for junior high students and younger), Sumida Aquarium at Tokyo Skytree, and teamLab Planets in Toyosu.

How far is Kasai Rinkai Park from Tokyo Disney Resort?

Kasai-Rinkai-Koen Station is one stop from Maihama, the station for Tokyo Disney Resort, on the JR Keiyo Line. The ride takes only a few minutes, so the park is an easy half-day trip from a Disney hotel.

Can my children wait while I have an acupuncture session?

Yes. Families often visit together, with a partner and children waiting while one parent has a session. Please mention it when you book so the clinic can plan the timing.