Gunma Music Festivals [2025–2026]: Outdoor Festivals and Events Summary

The Gunma Rock Festival, which was held for three years starting in 2011, has been reborn as “Yamabito Ongakusai.” The central driving force behind the event is G-FREAK FACTORY, and the title “Yamabito” (mountain folk) was chosen to evoke Gunma Prefecture’s mountains: Mt. Akagi, Mt. Haruna, and Mt. Myogi.

New Acoustic Camp is an event of mountains, camping, and music held at Minakami Kogen in Gunma Prefecture. Unlike typical music festivals, its key point is that the mountains, camping, and music all equally “coexist” there. You can enjoy a live show right in front of the stage, lie back on the grass, or have a BBQ while listening to music drifting in from afar—there are countless free and easy ways to enjoy it. Why not join New Aco in your very own way?

Dubbed a “summer-camp-style” music festival, this multifaceted event repurposes a former elementary school. It’s packed with summer fun—not just music, but also food and ghost stories—and even offers camping.

The 1000-Person ROCK FES held in Gunma Prefecture is a participatory rock festival! It’s an event where they recruit people to perform together on the day and have a session with 1,000 participants. The sense of freedom of playing outdoors with such a large group must be truly special. It’s the kind of fun event that seems obvious but is surprisingly rare! Each year, set pieces are announced, and anyone who applies can join the performance, so if you’ve ever wanted to play music with a big crowd, be sure to sign up!