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Grand Blue
Grand Blue Season 3 premiered July 6, 2026 with the story moved to Palau, and a merchandise line tied to the season opened pre-orders on September 4 for late November shipping.
Synthesized from 9
Yomimono stories · updated
Sep 10
Grand Blue Dreaming returned for a third season on July 6, 2026, airing on Tokyo MX, BS11, MBS, and AT-X, with streaming on U-NEXT, Anime Hodai, Anime Times, and Lemino from July 7. The season moves Iori and the cast to Palau, the first time the story has left Japan. Shinji Takamatsu returns as director, scriptwriter, and sound director. The opening theme "Natsuko" is by FUNKY MONKEY BABY'S and the ending theme "Hadaka no Mermaid" is by MAMESHIBA NO TAIGUN, produced by Kuro-chan. New cast includes M.A.O as Karina, Sayaka Ohara as Sayaka Kotegawa, Asami Seto as Chief, and Aya Suzaki as Maki. Episode 1, titled "Unfinished Business," has the third-year PaB members planning a summer festival.
The run-up to the premiere was dense. A key visual and the opening theme artist were revealed on May 24, a date the official site noted as Scuba Diving Day. The main promotional video followed on June 11, and a synopsis with scene cuts for Episode 1 arrived June 22. The second season ended in September 2025, and the third was announced shortly after its finale. Coverage from ASCII.jp grouped the season into a summer 2026 roundup and confirmed the July 6 premiere date.
Promotion continued after launch. The Anime Times YouTube channel streamed all 24 episodes of Seasons 1 and 2 free from July 7 to July 21. ABEMA ran Grand Blue alongside ONE PIECE and Love Live! Sunshine!! in a Marine Day feature on July 20, describing the series as a comedy about diving and college life in Izu. The most recent development is merchandise: Banana Spirits opened pre-orders on September 4 for a Season 3 line on its ANIGA-TER store, including T-shirts, a mesh tote bag, an eye mask, a stainless tumbler, acrylic blocks and rings, and boxer briefs printed with a nude scene design. Orders ship in late November.
Key facts
- Season 3 premiere date
- July 6, 2026 ↗
- Broadcast stations
- TOKYO MX, BS11, MBS and other stations; streaming on U-NEXT, Anime Hodai, Anime Times, and Lemino from July 7 ↗
- Setting
- Palau, the first time the story moves outside Japan ↗
- Director
- Shinji Takamatsu returns as director, scriptwriter, and sound director ↗
- Theme songs
- Opening "Natsuko" by FUNKY MONKEY BABY'S; ending "Hadaka no Mermaid" by MAMESHIBA NO TAIGUN, produced by Kuro-chan ↗
- New cast
- M.A.O as Karina, Sayaka Ohara as Sayaka Kotegawa, Asami Seto as Chief, Aya Suzaki as Maki ↗
- Episode 1
- "Unfinished Business," aired July 6 ↗
- Manga
- By Kenji Inoue and Kimitake Yoshioka, serialized in Kodansha's Good! Afternoon from April 2014, 26 volumes as of April 2026 ↗
- Free catch-up stream
- All 24 episodes of Seasons 1 and 2 streamed free on the Anime Times YouTube channel from July 7 to July 21 ↗
- Season 3 merchandise
- Banana Spirits pre-orders opened September 4 on the ANIGA-TER store for T-shirts, a mesh tote bag, an eye mask, a stainless tumbler, acrylic blocks and rings, and boxer briefs with a nude scene design; shipping in late November ↗
Timeline
- Sep 4, 2026 Grand Blue Season 3 Merch Line Adds Nude-Design Boxer Briefs
- Jul 20, 2026 ABEMA Streams One Piece, Love Live Sunshine, Grand Blue for Marine Day
- Jul 9, 2026 Grand Blue Seasons 1 and 2 Stream Free on YouTube as Season 3 Premieres
- Jul 5, 2026 2026 Summer Anime Roundup: Grand Blue Season 3, Cat and Dragon, and More
- Jun 24, 2026 Grand Blue Season 3 Sets July 6 Premiere
- Jun 22, 2026 Grand Blue Season 3 Episode 1 Synopsis Released
- Jun 11, 2026 Grand Blue Season 3 Trailer Reveals July 6 Debut and Theme Songs
- May 24, 2026 Grand Blue Dreaming Season 3 Reveals Key Visual and Opening Song Artist
- May 17, 2026 Grand Blue Season 3 Heads to Palau for Summer 2026
Synthesized by Yomimono from the cited Yomimono stories below, each itself
sourced, then editorially reviewed. Every
fact links the story it came from.
Facts
- Licensed by
- ABEMA (Japan) · 2026-07-20
- Noted
- is a comedy about diving and college life in Izu · 2026-07-20
- Release
- tv · 2026-07-06 · 2026-06-22
- Release
- tv · 2026-07-07 · streaming · 2026-06-24
- Release
- tv · July 2026 · 2026-07-09
- Release
- tv · 2026-07-06 · Japan · 2026-06-11
- Release
- tv · July 2026 · Japan · 2026-05-24
- Announced
- Seasons 1 and 2 streaming free on YouTube from July 7 to July 21 · 2026-07-09
- Announced
- third season announced shortly after second season finale · 2026-06-11
- Announced
- key visual and opening song artist revealed · 2026-05-24
Connections
Structured graph also available as JSON at /public/entities/grand-blue.
CC BY 4.0.
Claim activity
When a claim about Grand Blue was confirmed, debunked, or disputed against
open-web sources. The record stays even after a claim drops off the facts list.
- Confirmed third season announced shortly after second season finale Aug 31 · source
- Confirmed tv 2026-07-06 Japan Aug 31 · source
- Confirmed key visual and opening song artist revealed May 28 · source
- Disputed tv July 2026 Japan May 28 · source
- Confirmed funky monkey b by s scored by grand blue May 27 · source
All coverage
1d ago
The official website for the Grand Blue Dreaming television anime announced on Tuesday that the series is getting a fourth season. The announcement came one day after the third season's 12th and final episode aired on Monday, September 21, 2026. A teaser visual accompanied the news. The third season debuted on July 6 on Tokyo MX and BS11 and is set in Palau, marking the first time the anime's setting has moved outside Japan. Shinji Takamatsu returned as director, and studios ZERO-G and Liber handled the animation. The returning voice cast includes Yuma Uchida as Iori Kitahara, Ryohei Kimura as Kohei Imamura, and Chika Anzai as Chisa Kotegawa. The Grand Blue Dreaming manga, written by Kenji Inoue and illustrated by Kimitake Yoshioka, began serialization in Kodansha's Good! Afternoon magazine in April 2014 and is published digitally in English by Kodansha USA Publishing.
Sep 4
Banana Spirits opened pre-orders on September 4 for a new Grand Blue Season 3 merchandise line on its ANIGA-TER store. The lineup includes T-shirts, a mesh tote bag, an eye mask, a stainless tumbler, acrylic blocks and rings, and a pair of boxer briefs printed with a bold nude scene design. Orders placed now ship in late November.
Jul 20
ABEMA is streaming three anime set at the sea to mark Marine Day on July 20: ONE PIECE, Love Live! Sunshine!!, and Grand Blue. The feature, titled 'Enjoy the summer vibe of Marine Day! 3 anime set at the sea,' highlights each series' ocean-themed setting and story. ONE PIECE follows Luffy's pirate voyage, Love Live! Sunshine!! is set in the coastal town of Numazu, and Grand Blue is a comedy about diving and college life in Izu.
Jul 9
The Anime Times official YouTube channel began streaming all 24 episodes of Grand Blue Seasons 1 and 2 for free from July 7 until July 21. The release coincides with the July 2026 premiere of Season 3, allowing viewers to watch the series consecutively. The show is a youth diving comedy known for its drinking and nudity, with warnings at the start of each episode.
Jul 5
ASCII.jp's 2026 Summer Anime Special Part 7 highlights five titles: Grand Blue Season 3, The Cat and the Dragon, The Strongest Dregs Prince's Secret Imperial Succession Struggle, The Case of the Transfer Student's Pure and Lovely Beautiful Girl Being a Childhood Friend I Used to Play with Thinking She Was a Boy, and X-Men '97. Grand Blue Season 3 premieres July 6.
Jun 24
The third season of the anime adaptation of Kenji Inoue and Kimitake Yoshioka's diving comedy manga will begin airing on TOKYO MX, BS11, MBS and other stations from July 6, 2026. Streaming on U-NEXT, Anime Hōdai, Anime Times, and Lemino starts July 7. The season takes Iori and the cast to Palau. Episode 1 synopsis and preview cuts have been released.
Jun 22
The synopsis and scene cuts for Episode 1 of Grand Blue Season 3 have been released. The episode, titled "Unfinished Business," airs July 6. The third-year PaB members plan a summer festival to do what they left unfinished, but it is bound not to end peacefully.
Jun 11
The third season of the Grand Blue Dreaming anime will premiere on July 6 on Tokyo MX and BS11, with additional broadcasts on MBS from July 7 and AT-X from July 9. The main promotional video, released on June 11, previews the opening theme song "Natsuko" by FUNKY MONKEY BΛBY'S and the ending theme song "Hadaka no Mermaid" by MAMESHiBA NO TAiGUN, which was produced by comedian and actor Kuro-chan. The season is set in Palau, marking the first time the story moves outside Japan. Returning director Shinji Takamatsu is handling direction, script, and sound direction at studios ZERO-G and Liber. Previously announced new cast members include M.A.O as Karina, Sayaka Ōhara as Sayaka Kotegawa, Asami Seto as Chief, and Aya Suzaki as Maki. The second season concluded in September 2025, and the third season was announced shortly after its finale.
May 24
The official website for the Grand Blue Dreaming anime revealed a key visual and the opening theme song artist for the third season on May 24, a date recognized as "Scuba Diving Day" in Japan due to a wordplay on "Go to Sea." The band FUNKY MONKEY BΛBY'S will perform the opening theme song titled "Natsuko." The season is set to premiere in July on Tokyo MX, BS11, MBS, and AT-X channels. This season will take the cast to Palau, marking the first time the setting has been outside Japan. New cast members include Sayaka Ohara as Sayaka Kotegawa, Asami Seto as Chief, and Aya Suzaki as Maki. The second season ended in September 2025, and the third season was announced shortly after its finale. The anime is produced by studios Zero-G and Saber Works, with Shinji Takamatsu returning as director, scriptwriter, and sound director. The manga by Kenji Inoue and Kimitake Yoshioka began serialization in Kodansha's Good! Afternoon magazine in April 2014 and has 26 volumes as of April 2026.
May 17
The summer anime guide from ASCII.jp confirms Grand Blue Season 3 will air in July 2026, moving the college comedy to Palau. The teaser PV shows the usual Izu University crew causing trouble before the overseas trip. Director Shinji Takamatsu returns. The series also earned a spot on the 2026 list of 88 anime holy lands for its Ito City setting.