Tokyo Koto Fireworks Festival 2025 | A special water experience on a houseboat
If you want to enjoy the Koto Fireworks Festival without getting tired of the crowds, why not relax and enjoy the view from a cool, relaxing houseboat? Before you head out, take a sweet break at Eclat de Jour in Toyosu.
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The patisserie "Éclat des Jours" opened in Toyosu, Tokyo in June 2020. "Éclat des Jours" is a coined word meaning "glorious days" in French, and was named with the hope that our sweets will accompany our customers on their special days and everyday moments, and add color to their memorable "glorious days." The concept of Éclat des Jours' sweets is "freshness," "melting texture," and "smoothness." Based on the techniques and flavors that owner chef Yohei Nakayama acquired through his training in France, we value textures that are familiar to Japanese people and easy to eat. We aim to bring out the maximum flavor of the ingredients themselves while adding contrast to simple compositions. Our goal is to be a comprehensive patisserie. We offer a wide range of products, including entremets (whole cakes), petit gateaux (individual cakes), baked goods such as buttery madeleines and cookies, breads such as baguettes and croissants baked in-store every morning, and chocolates and jams that decorate our display cases. In the future, we also plan to expand our product lineup to include small gifts for everyday use and for relaxing at home. While cherishing French traditions, we are always challenging ourselves with new flavors, and hope to remain a patisserie that is loved by our customers for a long time.
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What is the Koto Fireworks Festival, a summer tradition in Tokyo's Koto Ward?
The Koto Fireworks Festival is held every summer in Koto Ward, located in eastern Tokyo. It is a popular summer event in Koto Ward that has been loved by locals for many years. The attraction of the venue is the close proximity of the launch site and the viewing seats. Approximately 6,000 fireworks are launched one after another from a barge floating on the Arakawa River, creating a breathtakingly powerful sight. The large flowers blooming in the night sky are reflected on the water's surface, creating a unique Koto scene where the urban night view intersects with the atmosphere of a downtown area.
Date: Monday, August 11, 2025 (National Holiday)
Time: Scheduled to start at 7:00 PM
Number of spectators: Approximately 300,000
Admission to the official viewing area
All seats in the official viewing area of the Koto Fireworks Festival are reserved. Tickets for 2025 have already sold out, and those without tickets will not be able to enter the official viewing area.
If you're thinking, "I came all the way to Japan, but I can't see it?", don't worry. There are still ways to enjoy it!
There are places where you can watch it for free, but be careful!
It is possible to see the fireworks from a distance outside the official viewing area.
・Yumenoshima Park
・South bank of the Arakawa River (towards Shinsuna)
However, the reality is as follows:
- You must reserve a spot at least 2 hours in advance
- Midsummer heat, insects, and food and drink issues
- Lack of toilets and heavy congestion on the way home
- Long wait times with luggage...
We would like to point out that, especially for international travelers, the cost of free transport comes at a significant cost in terms of comfort.
That's when you need a "best seat on the water" - a houseboat!
The fireworks display site is on the river, which means the best views are from the water.
So, we recommend the fireworks viewing plan on a houseboat!
Unobstructed by embankments or high-rise buildings, you can enjoy a direct view of the night sky and the "double flowers" on the water. The greatest appeal of a pleasure boat is that you can sit back, relax, and enjoy the coolness without being pushed around by the waves of people.
The appeal of houseboats
・Watch the fireworks head-on with an unobstructed view
・The ship is fully air-conditioned and includes meals and drinks
・You can also enjoy the "upside-down fireworks" reflected on the water surface.
・Advance reservations and limited seating arrangements eliminate crowd stress
Pricing and plan estimates
・Price range: Approximately 18,000 to 30,000 yen per person (usually includes all-you-can-eat food and drinks)
・Example plans: Meal included / All-you-can-drink included / Boarding only / Yukata rental partnership, etc.
・Meeting place: Harumi, Etchujima, Etchujima Park, Ariake, Toyosu area, etc. (varies depending on the tour)
Is there still time to get tickets?
Depending on the hosting boat company, there are still some yakatabune trips available for reservation (plans available from 3 days in advance to the day of the trip). Popular trips fill up quickly, so we recommend checking and booking early. Be sure to check the latest availability on the booking site or each company's official website.
*The reservation information in this article is current as of August 6, 2025. Please be sure to check the official reservation website or the information of each store for seat availability and reservations on the day of the fireworks.
Click here for reservation methods and the latest information
Enjoy some sweet magic before the fireworks at Éclat des Jours Toyosu store
Most houseboat boarding times are in the evening, so why not spend some cool, sweet time before boarding?
Éclat des Jours Toyosu, a French pastry shop located right next to Toyosu Station, is a hidden patisserie that's perfect for a break before the fireworks, and can be dropped off on the way to the pleasure boat departure and arrival point.
A cold drink before the fireworks: Eclat de Jour's summer drink
Eclat de Jours also offers a selection of cold drinks to cool down the summer heat. You can take a break in the store or order a takeaway. If you bring one on your way to the meeting point for the houseboat, you can stay comfortable while you wait.
From left: craft cola, hibiscus tea, and mango smoothie.
Store Information
Store name: Éclat des Jours Toyosu store
Access: 3 minutes walk from Toyosu Station on the Tokyo Metro Yurakucho Line
Business hours: Weekdays: 11:00-20:00 Saturdays and holidays: 10:00-20:00
Closed: Mondays and Tuesdays
Create your own perfect summer night
Even though official tickets for the Koto Fireworks Festival are sold out, there are still plenty of ways to brighten up your summer.
Avoid the crowds and choose a special seat on the water on a houseboat
Before that, take a break and enjoy some sweets at the quiet and beautiful "Éclat des Jours."
This summer, why not create some memories by experiencing the Tokyo nightlife with all your senses?
The patisserie "Éclat des Jours" opened in Toyosu, Tokyo in June 2020. "Éclat des Jours" is a coined word meaning "glorious days" in French, and was named with the hope that our sweets will accompany our customers on their special days and everyday moments, and add color to their memorable "glorious days." The concept of Éclat des Jours' sweets is "freshness," "melting texture," and "smoothness." Based on the techniques and flavors that owner chef Yohei Nakayama acquired through his training in France, we value textures that are familiar to Japanese people and easy to eat. We aim to bring out the maximum flavor of the ingredients themselves while adding contrast to simple compositions. Our goal is to be a comprehensive patisserie. We offer a wide range of products, including entremets (whole cakes), petit gateaux (individual cakes), baked goods such as buttery madeleines and cookies, breads such as baguettes and croissants baked in-store every morning, and chocolates and jams that decorate our display cases. In the future, we also plan to expand our product lineup to include small gifts for everyday use and for relaxing at home. While cherishing French traditions, we are always challenging ourselves with new flavors, and hope to remain a patisserie that is loved by our customers for a long time.
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