Qualla: Mikura-jima

Mikura-jima: Introduction

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Izawa Ryu, CC BY-SA 4.0. Two million birds and 351 people share an island the size of a small Tokyo neighborhood. Mikura-jima, a volcanic speck in the Philippine Sea administered as part of Tokyo Metropolis, hosts the largest breeding colony of streaked shearwaters on the planet -- a swirling, shrieking cloud of seabirds that outnumber the human population by a factor of roughly 5,700 to one. The island sits south of Miyake-jima in the Izu archipelago, wrapped in old-growth forest that has survived where other islands' forests have not, and ringed by waters where pods of wild dolphins have drawn visitors from across Japan for decades.

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Image: Izawa Ryu | CC BY-SA 4.0

Mikura-jima: The Exiles' Island

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Ka23 13, CC BY-SA 4.0. Mikura-jima has been inhabited for thousands of years, though written records only reach back to the Edo period. During the Tokugawa shogunate, the entire Izu Islands chain was designated as a place of exile -- a remote dumping ground for political dissidents, fallen officials, a...

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Image: Ka23 13 | CC BY-SA 4.0

Mikura-jima: A Forest the Volcanoes Spared

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Immanuel Friedlaender, Public domain. What sets Mikura-jima apart from its siblings in the Izu chain is its forest. Unlike the other islands, where eruptions, logging, and development have stripped much of the original cover, Mikura has preserved most of its old-growth canopy. Endemic species like the nioiebine orchi...

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Image: Immanuel Friedlaender | Public domain

Mikura-jima: Swimming with Dolphins, by the Rules

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 須賀次郎, CC BY-SA 3.0. Tourism is Mikura-jima's primary industry, drawing about 10,000 visitors per year to an island with a permanent population of just 351. The main attraction is the resident dolphin population in the surrounding waters. Dolphin tours operate from March through October, with boats d...

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Image: 須賀次郎 | CC BY-SA 3.0

Mikura-jima: Boxwood, Orchids, and the Art of Shogi

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Data: Global Land Cover Facility (GLCF) Snip: っ at Japanese Wikipedia, CC BY-SA 3.0. Beyond dolphin tours, Mikura-jima's economy rests on a handful of niche exports that reflect the island's unique ecology. Ashitaba, a fast-growing plant native to the Izu Islands, is harvested and shipped to the mainland. Calanthe orchids, cultivated in the island's subtropical c...

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Image: Data: Global Land Cover Facility (GLCF) Snip: っ at Japanese Wikipedia | CC BY-SA 3.0

Mikura-jima: At the End of the Ferry Line

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Soica2001 (talk), Public domain. Reaching Mikura-jima requires the kind of planning that filters out casual visitors. The island sits along the route of the overnight ferries that serve the Izu chain from Takeshiba Pier in Tokyo, but the sea conditions in this stretch of the Philippine Sea can be rough, and port...

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Image: Soica2001 (talk) | Public domain