Trial in Open Water!.Gou discovers a training regimen from a past swim club and proposes a summer training camp. Makoto suggests camping on the beach and ocean training and though Haruka expresses concern about Makoto's long-standing thalassophobia, Makoto assures him that he's fine. Coach Sasabe transports the team to the island where they discover the Samezuka Swim Team also training at a facility there. The Iwatobi regimen involves making three long-distance swimming circuits between the deserted islands of Sukishima, Oshima and Mizushima. By the end of Day One, they only complete half a circuit with Rei disappointed for lagging behind. That night, Rei secretly heads into the water to continue training but when a storm arises, he loses his kickboard and flounders, crying out for help. Makoto awakens and when he sees Rei struggling in the water, he swims out.