- Wanita Selam Indonesia
- 578 people
- Indonesia (Manado, North Sulawesi, Indonesia)
The longest human chain underwater consists of 578 people, and was achieved by Indonesia Women's Organisation (WASI) (Indonesia) in Manado, North Sulawesi, Indonesia on 1 August 2019The Indonesia Women's Organisation (WASI) achieved three Guinness World Records the first one on the 1st August, The longest human chain underwater. Then on the 3rd of August The most people scuba diving simultaneously and The largest flag unfurled underwater.