The diving-themed comedy Grand Blue Dreaming is set to return for a fourth season. The announcement arrived immediately following the broadcast of the third season's final episode, accompanied by a new teaser visual to mark the continuation of the series.

While specific details regarding the production staff or a release window remain unconfirmed, the series has maintained a consistent presence since its 2018 debut. The anime adapts the long-running seinen manga by Kenji Inoue and Kimitake Yoshioka, which has seen significant success with over 11 million copies in print. Kodansha continues to support the source material, with the 27th volume scheduled for release this October.

For those looking to catch up, the franchise has seen shifting distribution, with the first season appearing on Amazon Prime Video and subsequent seasons finding a home on Crunchyroll. The series currently holds a strong 8.35/10 rating on MyAnimeList, reflecting its enduring popularity among fans of the genre. With the production cycle for the fourth season now underway, it remains to be seen if the collaborative efforts between Zero-G and Saber Works will continue for this next installment.