Grand Blue Dreaming manga volume 11 features story by Kenji Inoue with art by Kimitake Yoshioka.

The diving club’s excursion to an uninhabited island has left everyone in uncharted territory. While at first glance the island seems a heavenly oasis, it turns out to be a little less uninhabited than expected. Everyone is in for much more than they bargained for, and their dreamy excursion begins to feel more and more like a nightmare…