Deserted Islands

Deserted Islands (無人島 Mujintou), refers to a section of archipelago off the coast of Iwatobi. There, three deserted islands and a single inhabited one appear in an old training manual discovered by Gou Matsuoka. The deserted islands are named Sukishima (好島), Oshima (大島) and Mizushima (水島). The fourth is unnamed, but inhabited, and it is where the Iwatobi team sets up base camp. Their plan is to swim between all the islands in a daily circuit in order to improve strength and stamina. In Trial in Open Water! Gou, along with advisor Miho Amakata and the Iwatobi Swimmimg Club members, travel on Goro Sasabe's squid boat to said inhabited island where the Samezuka Swimming Club is also training at an indoor swimming venue. While Gou and Miho stay at a nearby lodge, the Iwatobi team camps on the beach. That night, following a near-drowning incident, the team ends up on Sukishima Island, where an abandoned Rest House and operational lighthouse stand. There they learn more about one another and become bonded as a team.

Gallery

Gou shares an old training manual depicting the Three Islands area.

Close-up of the training manual.

Map of Three Islands training route - looking southward.

Map of Three Islands training route - looking southward.

Training regimen outlined with beach camp at bottom.

On beach camp island, watching Samezuka Swimming Club's training session.

Rin and Aiichiro at the indoor swimming venue.

Seijuro with his teammates at the indoor swimming venue.

Beach camp is established.

The lodge above beach camp.

A room at the lodge.

Mizushima Island - to the east.

Oshima Island - to the south.

Sukishima Island - to the west.

Training begins.

Entering the karst cove at Sukishima Island.

Later, Gou fetches dinner supplies at an island convenience store...

...and runs into big brother, Rin.

Beach camp shoreline at night.

Island ocean at night

Sukishima Island Lighthouse in operation.

Interior of abandoned Rest House kitchen.

Teammates sheltering on the upper level of the Rest House.

Nagisa finds supplies.

Sharing his discovery.

Sukishima Rest House exterior.

Passing time inside the Rest House.

Makoto reveals how the islands' ocean appears to him.

Starry skies over rural Japan.

Sukishima Rest House and Lighthouse exterior.

Day breaks over Sukishima Island.

Island flowers in bloom.

Looking back at their beach camp.

Trivia

• The fictionalized islands likely refer to the real-life Oki Islands located off the coast of Iwami Town.