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9 Islands in Kumamoto worth your time

Japan Gems

9 Islands in Kumamoto, with what to see and how to get there.

Kumamoto has 9 islands on Japan Gems. Below are the 9 we can tell you the most about — each one written up in English from Japanese sources, with what to see and how to get there. See all islands in Kumamoto.

01

Yushima

KUMAMOTO · PLACE 湯島

Yushima

A small basalt island in Kumamoto known for its large cat population and historical role in the Shimabara Rebellion.

What it is

  • A flat table-shaped island formed from basalt located between Oyano Island and Shimabara Peninsula.
  • Commonly nicknamed Dango Island because of its history during the Shimabara Rebellion.
  • A destination known as Cat Island home to approximately two hundred resident cats.
  • Part of Kamiamakusa City situated nine kilometers offshore from the mainland.

What to see

  • The Yushima Lighthouse which was first lit in December nineteen sixteen.
  • A local community where five surnames account for the majority of the population.
  • The island landscape spanning a circumference of approximately three point five kilometers.
  • Local public buildings including an elementary school and a junior high school.

Getting there

  • Regular ferries depart five times daily from Ebito Port.
  • The ferry journey from the port takes approximately twenty-five minutes.

Read more about Yushima

02

Maki Island

KUMAMOTO · PLACE 牧島

Maki Island

A quiet island in Unzen-Amakusa National Park known for ancient fossils, rare wildlife, and a three-hundred-year-old monument tree.

What it is

  • A populated island located in the Yatsushiro Sea within Unzen-Amakusa National Park.
  • The island name originates from a historic ranch owned by the Sumoto clan.
  • The landscape contains geological strata dating back to the Cretaceous and Paleogene periods.
  • Home to endangered species including the milky fiddler crab and diverse marine life.

What to see

  • A three-hundred-year-old Ficus superba tree designated as a city natural monument.
  • The Nakaseto Bridge which provides a physical connection to neighboring Goshoura Island.
  • Fossil discovery sites where ammonites and Coryphodon remains have been unearthed.
  • Local agricultural displays of citrus fruits such as the Dekopon variety.

When to go

  • Visit during the summer months to attend the local island festival.
  • The Shima-aji Marathon is held annually for runners and visitors.

Read more about Maki Island

03

Ōyano Island

KUMAMOTO · PLACE 大矢野島

Ōyano Island

This island in the Amakusa archipelago offers national park views, historical ties to Amakusa Shiro, and local aquaculture industries.

What it is

  • The third largest island in the Amakusa archipelago within Kumamoto Prefecture.
  • A part of the Unzen-Amakusa National Park featuring diverse coastal landscapes.
  • The historical territory of the Oyano clan during the medieval period.
  • The reputed birthplace of the historical figure Amakusa Shiro.

What to see

  • Mount Tobidake which serves as the highest point at 229 meters.
  • The Tenmon Bridge connecting the island to the Uto Peninsula.
  • Active aquaculture sites producing prawns, yellowtail, and pearls.
  • Scenic views along National Route 266 which passes through the island.

When to go

  • The Amakusa Pearl Line Marathon is held annually every March.

Getting there

  • Kyushu Sanko Bus provides transportation from Kumamoto and Hondo.
  • Access is available via the Tenmon Bridge from the Uto Peninsula.

Read more about Ōyano Island

04

Tobase Island

KUMAMOTO · PLACE 戸馳島

Tobase Island

A rural island in Kumamoto connected by bridge, known for its orchid cultivation, citrus groves, and ancient shell mound ruins.

What it is

  • A small island in the northern Yatsushiro Sea belonging to Uki City.
  • A former independent village that became part of the mainland municipality in 1955.
  • An agricultural hub specializing in orchids, snapdragons, and marguerite flowers.
  • A center for local aquaculture producing clams and prawns.

What to see

  • The Hamansu Shell Mound containing pottery and bones from the Jomon period.
  • Extensive greenhouses dedicated to the cultivation of various orchid species.
  • Agricultural fields growing mandarin oranges and sweet summer oranges.
  • The Tobase Bridge which connects the island to the Uto Peninsula.

Getting there

  • Access the island via the new bridge that opened in March 2019.
  • Local public transportation is limited to a reservation-based shared taxi service.

Read more about Tobase Island

05

Kyushu

KUMAMOTO · PLACE 九州

Kyushu

Japan's third largest island offers dramatic volcanic landscapes, warm climates, and major urban centers across seven southwestern prefectures.

What it is

  • One of the four main islands located in the southwestern part of Japan.
  • A region historically known in ancient texts as Tsukushinoshima.
  • A large landmass consisting of seven prefectures with over twelve million residents.
  • The third largest island in the Japanese archipelago bordered by the Pacific Ocean.

What to see

  • Mount Aso featuring one of the world's largest volcanic calderas.
  • Mount Nakadake which serves as the island's highest point at 1,791 meters.
  • Fukuoka City which is the largest urban center in the region.
  • Diverse coastal views along the Pacific Ocean and the East China Sea.

When to go

  • Summer months experience high rainfall across the seven prefectures.
  • The climate is generally warm throughout the year for visitors.

Read more about Kyushu

06

Mizushima

KUMAMOTO · PLACE 水島

Mizushima

A small uninhabited island and national scenic spot mentioned in ancient Japanese chronicles and poetry collections.

What it is

  • An uninhabited island located near the Kuma River estuary in Yatsushiro City.
  • A designated national scenic spot mentioned in the ancient Nihon Shoki and Manyoshu texts.
  • The site where Emperor Keiko reportedly visited during his travels.
  • A location historically known for a natural spring that dried up around 1955.

What to see

  • A small bridge connecting the embankment to the island for pedestrian access.
  • A stone monument marking the site of the former natural spring.
  • Scenic views of the surrounding water and coastal landscape.

Getting there

  • Thirteen minutes by taxi from Higo-Koda Station.
  • Located 5.5 kilometers from the Yatsushiro-minami Interchange.
  • Accessible on foot via a bridge from the mainland embankment.

Read more about Mizushima

07

Tsūji Island

KUMAMOTO · PLACE 通詞島

Tsūji Island

A coastal island in Amakusa known for its medieval history as a home for interpreters and its diverse marine seagrass beds.

What it is

  • A small island located at the northern tip of Amakusa Shimoshima in Kumamoto Prefecture.
  • The name originates from interpreters who lived on the island during medieval times.
  • Connected to the mainland by the Tsuji Ohashi Bridge which opened in 1975.

What to see

  • Diverse seagrass and seaweed beds located along the coastal areas.
  • The Tsuji Ohashi Bridge which allows visitors to cross onto the island on foot.

Getting there

  • A thirty-eight minute bus ride on the Sanko Bus from Hondo Bus Center.
  • A fifteen minute drive from Amakusa Airport to the island.
  • Two and a half hours from Kumamoto City by car.
  • Ferries connect Shimabara Kuchinotsu Port to Oniike Port, located six kilometers away.

Read more about Tsūji Island

08

Goshourajima

KUMAMOTO · PLACE 御所浦島

Goshourajima

An inhabited island in the Yatsushiro Sea known for its significant dinosaur fossil discoveries and Cretaceous museum.

What it is

  • An inhabited island in the Yatsushiro Sea with a population of 1,786 people
  • Known as Dinosaur Island and Fossil Island following major discoveries in 1997
  • Home to the Goshouura Cretaceous Museum which displays local fossil finds

What to see

  • A Tyrannosaurus head object located at Goshouura Port
  • Karasu-toge, which is the highest peak on the island
  • Fossils and prehistoric displays at the Goshouura Cretaceous Museum

When to go

  • The Shima-aji Marathon is held annually every February

Getting there

  • Regular ferry services connect the island to various mainland ports
  • Local bus services are operated on the island by Goshouura Taxi

Read more about Goshourajima

09

Iwa Island

KUMAMOTO · PLACE 維和島

Iwa Island

A quiet island in the Amakusa archipelago featuring mountain peaks, ancient burial mounds, and local prawn aquaculture farms.

What it is

  • A residential island in the northern Amakusa archipelago also known as Senzoku Zouzou Island.
  • An independent municipality from 1881 until it merged into Oyano Town in 1954.
  • A local center for the kuruma prawn aquaculture industry.
  • Home to the Senzaki Burial Mounds and local educational facilities.

What to see

  • The ancient Senzaki Burial Mounds located on the island.
  • Mount Takayama and Mount Daikan which provide natural elevation.
  • The Todai-i Bridge connecting the island to neighboring Yagyu Island.
  • Local prawn aquaculture farms situated around the island coast.

Read more about Iwa Island

See all 9 islands in Kumamoto