Oarai Ocean Fireworks Festival 2026 ×COS★FES TREASURE
【 Saturday, September 26, 2026 — Oarai Ocean Fireworks Festival 2026 】
— Fireworks × Entertainment × Cosplay — That special day is back again this year!
An overwhelming 20,000 fireworks filling the night sky. Plus stage performances, food festivals, supercar exhibitions, and diverse entertainment from day to night!
And this year — the birth of the "COS★FES Area"! Merchandise, exhibits, and hands-on content by popular official COS★FES cosplayers await both fans and first-timers.
☆ General cosplay participation OK! (Changing rooms & cloakroom available) ☆
From day to night, enjoy a full day in your favorite cosplay at a venue full of photo spots and entertainment. (Please check the guidelines when participating in cosplay.)
Official layers will also take the main stage for spectacular performances! It's like a one-day theme park — a magical space woven from fireworks and entertainment, offering a summer memory you can only experience here.
Participation Notice
- ●Cosplay participants must use the venue's changing rooms out of consideration for the surrounding area and general visitors.
- ●A separate "Changing Room Pass (¥1,000)" is required in addition to the fireworks viewing ticket. Please pay at the changing room reception on the day.
- ●Photographers may participate with the admission ticket only.
- ●When enjoying cosplay or photography at the venue, please check the participation guide and follow the rules.
Click the image to view the Cosplay / Photographer participation guide ☟
Event Overview
- Name
- Oarai Ocean Fireworks Festival 2026
- Date
Saturday, September 26, 2026 — Open 12:00 / Close 21:00
In case of bad weather, only the fireworks will be postponed to the following day. The decision will be announced on September 25 (Fri) at 15:00 on the official website.
- Timetable
13:00 — Various content begins
18:00 — Fireworks launch begins
19:30 — Fireworks launch ends
— 21:00 After-party
- Count
- A record 20,000 fireworks
- Venue
- Oarai Sun Beach, Ibaraki (Minato-chuo, Oarai-machi, Higashiibaraki-gun, Ibaraki)
- Changing Room
- Available 12:00–20:30 — Please allow plenty of time