Grand Blue Dreaming Season 3 Review: The Boys Finally Leave Japan, and Palau Is Worth the Wait

Some comedies coast on a formula until it curdles. Grand Blue Dreaming has spent two seasons proving it can run the same joke, half-naked idiots drinking themselves stupid while occasionally remembering they belong to a diving club, and somehow make it funnier each time. Season 3 could have played it safe and stayed in Izu. Instead it does the one thing the franchise had never done: it puts the whole disaster on a plane and drops them in Palau. The result is the sharpest the show has been, and a reminder that this cast is at its best when you strand it somewhere new.

Where we are, and why Palau matters

Season 3 premiered on July 7, 2026, and it streams weekly on Crunchyroll every Monday at 8:30 AM Pacific. If you fell off after the second season, the setup is simple: Iori Kitahara is still nominally a marine sports student, still perpetually one bad decision from disaster, and still surrounded by people who treat alcohol as a personality. What changes this time is the geography.

The Palau arc is a genuine milestone for the series. For the first time, the Diving Club leaves Japan entirely and heads to a tropical island, which means new water, new rules, and a whole new pool of strangers for these lunatics to horrify. Manga readers have been waiting specifically for this stretch, and it is easy to see why. The change of scenery does what a good vacation episode always does, except stretched across a whole cour: it takes characters you know cold and forces them to react to something unfamiliar.

The comedy still hits, and it hits harder abroad

The core engine of Grand Blue has always been escalation. A small, reasonable premise, someone wants to do something normal, spirals into public nudity, forced drinking, and Iori's face melting into the show's signature grotesque reaction shots. Season 3 keeps that engine and feeds it new fuel. Being in a foreign country means the usual embarrassment now plays out in front of people who have no context for these idiots, and the show mines that gap for everything it is worth.

What keeps it from getting exhausting is the same thing that always has: the timing. Shinji Takamatsu is back in the director's chair, and his comedic rhythm remains the not-so-secret weapon. He knows exactly how long to hold a reaction, when to cut hard to a straight-faced Chisa, and how to let a bit breathe until it becomes unbearable in the best way. Zero-G and Saber Works handle production, and the animation does the important job of selling the extremes, the bug-eyed panic, the drunken swaying, the sudden shift to actually gorgeous underwater shots when the show remembers diving exists.

The new cast earns its place

A new location needs new people, and Season 3's additions land better than most seasonal newcomers. M.A.O voices Carina, a local character who looks set to be the arc's breakout, and she slots into the ensemble without feeling like a guest star parachuted in for novelty. Aya Suzaki plays Maki, a diving shop employee, and Asami Seto voices the shop's chief, giving the island its own set of straight-faced foils for the club to bounce off. Sayaka Ohara turns up as Sayaka Kotegawa, mother to the Kotegawa sisters, which tells you the show is not just adding warm bodies but actually building out its world.

The returning voices are all here too. Yuma Uchida remains perfectly cast as Iori, Ryohei Kimura is back as Kohei, the film-obsessed weirdo who anchors half the best gags, and Chika Anzai returns as Chisa, whose deadpan disgust is the load-bearing beam of the entire comedy. Nobody phoned it in.

It is not only jokes

Here is the thing people miss about Grand Blue if they only clip the drinking gags: underneath the chaos, it has always cared about its characters. The Palau arc is well regarded by manga readers not just for the vacation energy but for the real development it gives the group as they navigate being somewhere foreign together. Take these people out of their comfort zone and you learn things about them the home setting never had room for.

Season 3 leans into that quietly. Between the disasters, there are beats about friendship, about Iori actually growing up a fraction of a degree, about the group functioning as a unit when it counts. The show never gets sappy, it would rather punch the mood back down with a bottle of something, but the sincerity is what stops the comedy from feeling hollow. You laugh at these idiots because you are, against your better judgment, a little fond of them.

Who should watch, and where to start

If you have seen the first two seasons, this is an easy yes, and probably the strongest the anime has looked at launch. If you are brand new, do not start here. Grand Blue runs on knowing this cast well enough that their reactions land, so go back to Season 1, get through the fraternity-from-hell setup, and let the show earn your investment. The Palau arc is a reward for people who already speak the language of this particular brand of stupidity.

The opening theme is "Natsuko" by Funky Monkey Babys and the ending is "Hadaka no Mermaid" by Mameshiba no Taigun, both of which fit the sun-soaked, slightly unhinged tone perfectly.

The verdict

Grand Blue Dreaming Season 3 is the vacation the franchise needed and the cast very much did not deserve. By finally taking the Diving Club out of Japan, it refreshes a formula that was in no real danger of going stale and gives its best arc the animated treatment fans have wanted for years. The comedy is louder, the setting is gorgeous, the new characters click, and the heart is still beating under all the empty bottles. It is one of the funniest things airing this summer, and it knows exactly what it is. Grab a drink, or don't, these guys will handle that part, and enjoy the trip.

Frequently Asked Questions

When did Grand Blue Dreaming Season 3 come out?

Season 3 premiered on July 7, 2026, and new episodes stream weekly on Crunchyroll every Monday at 8:30 AM Pacific Time. It airs in Japan on Tokyo MX, BS11, and MBS.

Do I need to watch the earlier seasons first?

Yes. Grand Blue relies heavily on knowing the cast, so start with Season 1. Jumping straight into the Palau arc means missing the setup that makes the comedy land.

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