Most people to sign up online for a beach clean up in one hour

The most people to sign up online for a beach clean up in one hour is 1,680 and was achieved by Beach Heroes with Yaizuchuo High School (Japan) in Japan on 15 September 2025.

Affiliated Organizations are:

Shizuoka Prefectural Yaizu Chuo High School
Shizuoka Prefectural Fujieda Special Needs School Yaizu Branch
Yonago National College of Technology
Ishikawa Prefectural Nanao High School
Gifu Prefectural Ogaki Kita High School
Gifu Prefectural Ogaki Nishi High School
Kagoshima Prefectural Kokubu High School
Hyogo Prefectural Ako High School
Kyoto Ryoyo High School
The Kouchi Ikuho Laboratory, Institute of Interdisciplinary Research, Kanazawa University
The Yutaka Takeuchi Laboratory, Faculty of Biological Science and Technology, Kanazawa University
Izmir University of Economics
Universitas Syiah Kuala
Save the Sea of Shizuoka
General Incorporated Association SATOYAMAKAIGI
Community Center Maru
SUNLOFT Corp.
Yaizu City
Ishikawa Prefectural Kanazawa Nishikigaoka High School
General Incorporated Association Hokuriku SDGs Research Institute