- Dates & time
- November 21, 2026 (Sat) 10:00〜16:00
- Price & booking
- Free to watch / Player fee ¥2,500 (excluding drum rental and the one-mic-per-vocalist slot; preschoolers free) Players enter via the official site (Peatix); online entry closes Nov 10
- Venue & access
- Oizumi Ryokuchi Park, Large Lawn About 1 km east of Exit 2, Shinkanaoka Station (Osaka Metro Midosuji Line)
There are 3 car parks within a 12-minute walk of Oizumi Ryokuchi Park, Large Lawn, and 6 public restrooms within 8 minutes. The map shows each with its walking time.
Facility data comes from OpenStreetMap. It does not include opening hours, fees or availability.
Why You Should Visit
A mass rock ensemble on the Large Lawn of Oizumi Ryokuchi Park in Sakai, where drummers, guitarists, bassists and vocalists all play the same rock songs together. This year's theme is "I HAVE A DREAM — a sound only 1,000 people can make," with the goal of reaching 1,000 players; turnout grew from about 350 in 2023 to about 500 in 2025. Playing requires advance entry, while watching is free. A good stop if you want to hear a huge open-air jam or bring an instrument and join in.
Photo Gallery



NOTE
Watching and joining
- Watching is free; players must enter in advance
- Set songs: Green Day "Basket Case", Hump Back "Haikei, Shonen yo", THE BLUE HEARTS "Yume" and "TRAIN-TRAIN"
- For players the day runs 7:30–17:30, including load-in and rehearsal
Weather
- Backup date: Sun, Nov 22
※Contact: Sen no RockYou!! Executive Committee, info.senrock@everybuddy.site
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