Most of Nakadōri Island, however, is quite narrow, measuring less than 6 kilometres (3.7 miles) wide for much of its length.

The islands are highly cultivated; deer and other game abound, and trout are plentiful in the mountain streams.

[citation needed] An important historical element is the roots of Christianity in Japan within the islands.

Hanare Kirishitans still lived there; the majority either returned to Catholicism after it was legalized in the 19th century or reverted to earlier practices.

The natural camellia oil of Fukuejima is famous in Japan for cosmetic use.

Today, the castle is used as the Goto high school and is contributing to the education of young people.

Most of the castle area inside the stone walls are opened for public.