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Tadanae Island

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祇苗島

An uninhabited island near Kozushima known for its seabird colonies and a large population of Japanese striped snakes.

Tadanae Island
Saigen Jiro CC0 resized via Wikimedia Commons

What it is

  • An uninhabited island in the Izu Islands belonging to Kozushima Village.
  • Consists of two main islands and several surrounding reefs.
  • A protected breeding ground for various species of seabirds.
  • Commonly known as Snake Island due to its high reptile population.

What to see

  • Large populations of Japanese striped snakes throughout the island.
  • Numerous seabirds nesting across the rocky terrain.
  • Scientific GPS equipment used for monitoring crustal deformation.

When to go

  • Visit during the seabird nesting season to see the most snakes.

Getting there

  • Accessible by a forty-five minute boat ride from Kozushima.

Notes written by Japan Gems from facts in Japanese Wikipedia.

Where it is

Tadanae Island Open in Google Maps

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