It focuses more on the diving aspect of the story

NBC Universal has opened a website for the anime adaptation of Grand Blue Dreaming, where they showed us the anime´s first visual which you can see above and a promo which you can see bellow:

Shinji Takamatsu (Gintama) is the Director, Writer and Sound director at Studio Zero-G; Hideoki Kusama (Battery the animation) is the character designer.

Kodansha describes the storya s follows:

“After moving out on his own to a seaside town, Iori Kitahara makes a college debut he never anticipated. A new chapter of his life unfolds, full of diving with beautiful girls and shenanigans with a gaggle of lovable bastards! Idiot-expert Kenji Inoue and au naturel authority Kimitake Yoshioka bring you a glorious college tale filled with booze-fueled antics!”

Via: Anime News Network