Overview
Grand Blue Season 3 (Grand Blue Dreaming) continues Iori's college life as he finally gets used to university, crashing at his uncle's dive shop and enduring the booze-fueled antics of his diving club. This time his cousin asks him to help run a new dive shop in Palau, opening a chaotic summer amid crystal-clear water.
OtaHub's take
It is based on Kenji Inoue's manga, produced by Saber Works under director Shinji Takamatsu, runs 12 episodes, and began airing on 6/7/2026. The genres are comedy, slice of life, and sports. This is season three, following Grand Blue Season 2, and the related-works data shows that Grand Blue Season 4 now exists as well.
Verdict
It suits viewers who enjoy raunchy college comedy and diving scenes, but the two earlier seasons are worth watching first to know the club members. Newcomers should start from season one.
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