Okay so this is going to sound autistic as fuck but here we go:

File: Yokohama Kaidashi Kikou v09 c077 005.jpg (319KB, 767x1100px) Image search: [Google]

319KB, 767x1100px

>>366645
Yokohama Kaidashi Kikou.
It's not all about the sea, but there's more than the token beach chapter anyway.

Children of the Sea

>>366645
>>366652
>Yokohama Kaidashi Kikou.
I have a feeling you will get the same from Kabu no Isaki. Same artist, but this time flying with a small aircraft in the vastness of aerospace.
http://kissmanga.com/Manga/Kabu-no-Isaki

If it has to be slow paced waterworld, then Aria and Aqua.
http://kissmanga.com/Manga/Aria
http://kissmanga.com/Manga/Aqua

If you want a post apocalyptic full waterworld, then Wadatsumi.
http://kissmanga.com/Manga/Wadatsumi

Bokurano has nothing to do with beach,but most of the episodes are on the beach lmao

>>366645
Umi no Misaki. Looks like a generic harem setting for awhile, but it turns out it's not.
http://kissmanga.com/Manga/Umi-No-Misaki

>>366703
>Umi no Misaki
Oh dear.

>>366758
W-what is it anon?

File: sweating_Airplane.jpg (17KB, 590x300px) Image search: [Google]

17KB, 590x300px

>>366759
No comment

File: 1476075590803.png (14KB, 500x500px) Image search: [Google]

14KB, 500x500px

>>366760
You're no fun.

>>366759
It's different. Leave it out, ok?

File: 001.jpg (328KB, 901x955px) Image search: [Google]

328KB, 901x955px

>>366760
>>366762
Will reading this make me overflow with love?

>>366761
If I say too much I'll ruin it.

I will say that I enjoyed reading it and do not regret doing so.

>>366764
No. I started to read it, got drawn into it and I felt really bad in the end. Fucked up bad. Seriously.

File: 2.jpg (58KB, 500x500px) Image search: [Google]

58KB, 500x500px

>>366768
Like pic related bad?

>>366769
Do you want me to just spoil it?

>>366769
Go for it

>>366770
No, forget it. I'm just bored right now, but not ready to start a new series. I'll read it later.

>>366645
IO manga. Diving in Okinawa. Starts as a generic harem-esque setting, turns into mystery supernatural.
http://kissmanga.com/Manga/IO

These are all manga recs:
Glaucos
Kaikisen
Aoi Uroko to Suna no Machi
Believers

There's a decent number of oneshots that have that sort of setting without it being a beach episode sort of thing. A few I can recall offhand:
Seaside Return
City in the Sea
The Islanders
Goodbye Body
Island (KOMI Naoshi)

I have an extension request. I too atarted reading Grand Blue, and it is by far the most enjoyable manga I've read. Any recommendations for mangos with a college setting? Comedy or any other genre really, I just get more interested when it takes place in college

>>367181
I don't think there's a manga version, but if you're cool with anime recs then The Tatami Galaxy is pretty fantastic.

>>367181
Honey and Clover
Moyashimon
Nodame Cantabile
Kakukaku Shikajika
Udon no Onna

>>367181
Sukimasuki
Mustard Chocolate - the second half
Hagoromo Mishin

>>366645

Look up Amanchu. It is an anime/manga about diving.