Grand Blue Dreaming Season 3 has revealed that the band FUNKY MONKEY BΛBY'S will perform the new opening theme song, titled "Natsuko." The announcement was made on Sunday, coinciding with "Scuba Diving Day" in Japan, and was accompanied by the release of the season's key visual. FUNKY MONKEY BΛBY'S had previously teased the anime tie-in during their 20th-anniversary tour.
The third season is slated to premiere in July 2026, airing on channels including Tokyo MX, BS11, MBS, and AT-X. This new installment will see the series venture outside of Japan for the first time, with its setting shifting to Palau. Previously announced new cast members for the season include Sayaka Ōhara as Sayaka Kotegawa, Asami Seto as Chief, and Aya Suzaki as Maki.
The manga, created by Kenji Inoue and Kimitake Yoshioka, follows Iori Kitahara's college life in a seaside town, marked by diving adventures and comedic escapades. Kodansha USA Publishing handles the digital release of the manga in English. The franchise previously received a live-action film adaptation in 2020.
Source: Anime News Network
