Koga Fireworks Festival
A comprehensive guide to the 2026 Koga Fireworks Festival! Kanto's largest Sanjakudama (three-shaku shell) and 25,000 fireworks will light up the Watarase River night sky. Packed with information for international tourists, including secret viewing spots, paid seating details, and access.
Feb 23, 2026·✍️ olablog·⏱ 8 min read
A comprehensive guide to the 2026 Koga Fireworks Festival! Kanto's largest Sanjakudama (three-shaku shell) and 25,000 fireworks will light up the Watarase River night sky. Packed with information for international tourists, including secret viewing spots, paid seating details, and access.
Introduction (Why You Should Read This Article)
When it comes to iconic summer traditions in Japan, fireworks festivals (花火大会, hanabi taikai) are a must-see. Among the many spectacular displays, the Koga Fireworks Festival (古河花火大会) in Koga City, Ibaraki Prefecture, stands out for its sheer scale and beauty. Yet, it remains a hidden gem, relatively unknown to many international tourists. Set against the vast backdrop of the Watarase River (渡良瀬川) riverbed, approximately 25,000 fireworks, including Kanto's largest "Sanjakudama" (三尺玉, three-shaku shell), illuminate the night sky. The sheer power of the Sanjakudama, which expands to a diameter of about 650 meters (2,130 feet), is truly breathtaking. This article provides a detailed guide to maximizing your enjoyment of the Koga Fireworks Festival, from 2026 event information and highlights to access details and secret spots to avoid crowds and fully immerse yourself in the experience.
Event Information Summary
| Item | Details |
|---|---|
| Date | Saturday, August 1, 2026 *Cancelled in case of severe weather, no postponement date |
| Venue | Koga Golf Links (Watarase River riverbed, Koga City, Ibaraki Prefecture) |
| Number of Fireworks | Approximately 25,000 (official announcement) |
| Estimated Visitors | Approximately 200,000 annually |
| Paid Seating | Main Office Embankment Slope Seating (本部前堤防斜面席): approx. $147 per seat (accommodates up to 4 people, blue tarp provided), and more |
| Official Website | Koga City Homepage, Koga City Tourism Association |
*The 2026 event date is based on current information. Please check official sources for the latest updates.
Highlights of the Fireworks Festival
The greatest appeal of the Koga Fireworks Festival lies in its dynamic presentation, leveraging the expansive location of the Watarase River riverbed. The following two points are particularly noteworthy:
Kanto's Largest "Sanjakudama" Lights Up the Night Sky
The "Sanjakudama" (三尺玉, three-shaku shell), weighing approximately 300 kg (660 lbs) with a diameter of about 90 cm (3 feet), is synonymous with the Koga Fireworks Festival. Launched approximately 600 meters (1,970 feet) into the sky, this massive firework blooms into a grand flower with a diameter of about 650 meters (2,130 feet), overwhelming spectators with its scale. According to official announcements, the program is scheduled to feature two of these magnificent Sanjakudama. The thunderous roar and the shower of light filling the night sky will undoubtedly be an unforgettable experience.
"Tokudai Wide Star Mine" Synchronized with Music
Another major highlight of the Koga Fireworks Festival is the "Tokudai Wide Star Mine" (特大ワイドスターマイン, Super Large Wide Star Mine), designed by Nomura Hanabi Kogyo Co., Ltd. (野村花火工業株式会社), a leading company in the fireworks industry, to utilize the venue's unique terrain. Hundreds of fireworks are launched in rapid succession, synchronized with music, spreading horizontally across the night sky in a dazzling display. The ultra-large wide star mine that concludes the festival is breathtakingly beautiful, promising to create a truly moving summer memory.
Access & Transportation
The Koga Fireworks Festival is relatively accessible from central Tokyo, making it entirely feasible for a day trip. However, significant crowds are expected on the day of the event, so planning your journey in advance is crucial.
Access by Train
- JR Koga Station (JR古河駅): Approximately 60 minutes from Tokyo Station via the JR Utsunomiya Line (JR宇都宮線), which offers direct service to the Shonan-Shinjuku Line (湘南新宿ライン). The venue is about a 20-minute walk from the station. For those with a Japan Rail Pass (JR Pass), this is a convenient option.
- Tobu Nikko Line Shin-Koga Station (東武日光線新古河駅): Approximately 70 minutes from Asakusa Station (浅草駅) via the Tobu Nikko Line (東武日光線). This is the closest station to the venue, about a 5-minute walk. For train travel in Japan, consider using an IC card like Suica or Pasmo for seamless travel on most public transport.
Access by Car & Parking
Access by car is also possible, taking approximately 20 minutes from the Tohoku Expressway Tatebayashi IC (東北自動車道館林IC) via National Route 354 (国道354号). However, the area around the venue becomes a pedestrian-only zone from 5:00 PM to 10:00 PM, with extensive traffic restrictions in place. While multiple free parking lots are available, including at Koga City Hall Koga Main Building (古河市役所古河庁舎) and Koga Kubo Park (古河公方公園), totaling about 1,500 spaces, they are likely to fill up quickly. Therefore, using public transportation is strongly recommended.
Viewing Spots
Where you choose to watch the Koga Fireworks Festival can significantly impact your experience. You might opt for a paid seat for a relaxed, close-up view, or seek out free, secret spots to enjoy the show.
Paid Seating
Paid viewing seats are recommended for those who wish to enjoy the fireworks up close and comfortably.
- The most popular option is the Main Office Embankment Slope Seating (本部前堤防斜面席), priced at approx. $147 per seat (accommodates up to 4 people, blue tarp provided).
- Other types of paid seats include Fairway SS, S, A, B, and C seats (フェアウェイSS席、S席、A席、B席、C席). Paid seats often sell out quickly upon release, so it's advisable to check the official website for information and purchase tickets early.
Free Spots & Secret Spots
Given the vast riverbed venue, there are plenty of spots where you can enjoy the fireworks for free.
- Watarase River Embankment (渡良瀬川河川敷の土手): The embankments around the venue are ideal for spreading out a leisure sheet and enjoying the fireworks at your leisure. However, securing a good spot requires arriving early.
- Riverbed on the Tochigi Prefecture Side (対岸の栃木県側河川敷): While a bit further away, this can be a secret spot for those who want to avoid crowds and view the entire display.
- Open spaces around Koga Golf Links (古河ゴルフリンクス周辺の空き地) and along Jikken Road (十間道路沿い) are also cited as relatively less crowded spots offering good views of the fireworks.
What to Bring & Attire
Even on a summer night, the riverbed can be breezy and get chilly. To ensure a comfortable fireworks experience, prepare the following:
- Leisure Sheet / Cushion: Essential for sitting comfortably for extended periods.
- Insect Repellent: Mosquitoes can be prevalent near the river.
- Light Snacks & Drinks: While food stalls will be available around the venue, they can get crowded, so preparing some items beforehand is a good idea.
- Light Jacket or Cardigan: Nights can get cool, so a light layer is recommended.
- Rain Gear: In case of sudden weather changes, a raincoat is preferable to an umbrella as it won't obstruct others' views.
- Trash Bags: Please take all your trash with you.
Nearby Dining & Sightseeing
Before or after the fireworks festival, take the opportunity to explore the charms of Koga City. Known as "Ibaraki's Little Kyoto," Koga is a city rich in history and culture.
- Immerse yourself in history at the Koga Historical Museum (古河歴史博物館) or the Tenkoku Museum (篆刻美術館).
- Stroll through the streets that retain the atmosphere of a prosperous post town from the Edo period.
- Enjoy a meal at local restaurants. On the day of the fireworks, establishments like Denny's Koga Store (デニーズ古河店) in the vicinity are also available.
Summary & Related Articles
The Koga Fireworks Festival offers a magnificent spectacle, featuring Kanto's largest Sanjakudama and approximately 25,000 fireworks, all easily accessible from central Tokyo. For international tourists, it's a yet-to-be-discovered Japanese summer tradition that promises a truly special experience. With the event scheduled for Saturday, August 1, 2026, why not take this opportunity to visit Koga City in Ibaraki Prefecture and create unforgettable summer memories?
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- Ibaraki Summer Festival Special: A Tour of Events Beloved by Locals
- Day Trips from Tokyo: 5 Recommended Fireworks Festivals Accessible by Train
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