Kanojo ga mizugi ni kigaetara

This is a cute movie with exotic locations and funny story that doesn't take itself too seriously.

Mariko Tanaka who works for apparel maker is invited to a cruiser party from his colleague Kyoyo Ishii. They are detached from them during diving with parties in Sagami Bay. While wandering about seeking the original point, find the remnant of the plane DC - 3 accidentally sinking deep into the seafloor. When the two are badly distressed, they are rescued by Otsuka and Fumio Yoshioka of a yacht ship "Swallow No." that came by chance.

Mariko and Kyouto who were invited to "Club · Hitch" where the swallow crew is a hangout are attracted by photographs of airplanes decorated on the wall. That plane was the DC - 3 that Kyoto and Mariko found on the ocean floor. The Swallow's crew who sensed the truth of the matter questioned Kyoto and Mariko and asked the place of the plane. In this DC - 3, there were certain things that the swallow crew had been pursuing for many years.

If you never seen a family friendly movie from Japan in the 80s then this is a must, and it also has a lot of 80s all star acting in it, I recommend it warmly