Grand Blue Season 3 has surfaced with a fresh key visual, and fans now know who will be setting the tone for its next wave of wild summer chaos. The anime has confirmed that FUNKY MONKEY BABY’S will perform the new opening theme song, titled “natsuko.”
The timing of the announcement was no accident. In Japan, May 24 can be read as “Go To Shi,” a playful number-based phrase that connects to “Go To Sea.” Because of that wordplay, the date is recognized as Scuba Diving Day, making it the perfect moment to reveal new details for a comedy anime built around diving, friendship, drinking, and unforgettable college madness.
Grand Blue Season 3 is being produced by Zero-G and Saber Works, with the new season scheduled to premiere in July. This time, the story is heading beyond Japan for the first time, taking the beloved cast to Palau. That tropical setting opens the door for even more ocean adventure, beautiful scenery, and, of course, the kind of outrageous trouble that Grand Blue is known for.
The newly released key visual teases the next chapter of the series with a bright summer atmosphere, hinting at a season packed with diving, laughter, and the reckless energy that has made the anime a fan favorite. With Palau as the backdrop, Season 3 looks ready to deliver a refreshing mix of stunning blue waters and ridiculous comedy.
FUNKY MONKEY BABY’S also shared a message about creating the opening theme for Grand Blue. The band described the anime as a story filled with youth, friendship, and nudity, calling them treasures from a summer left behind. They said the song was written with the feeling of wanting to recapture those unforgettable moments.
They also offered a reflective line that captures the spirit of the upcoming season: “In the time remaining, how many more times are we allowed to relive this season?”
The band closed their message by wishing everyone a sparkling Summer 2026, matching the bright and nostalgic tone of the new theme song.
Grand Blue has built its reputation on mixing diving culture with absurd college comedy, and Season 3 seems ready to raise the stakes with a new location, a lively opening track, and another round of unpredictable adventures. Fans can look forward to more laughs, more ocean scenes, and more outrageous moments when Grand Blue Season 3 premieres this July.
