Peninsulas Codexery

Sadamisaki Peninsula

Narrowest peninsula in Japan for its length, separating Shikoku from Kyūshū.

Sadamisaki Peninsula

The Sadamisaki Peninsula is the westernmost part of the island of Shikoku, covered by the town of Ikata, Ehime Prefecture and home to the Ikata Nuclear Power Plant. It is sometimes referred to as the "Misaki Peninsula." This landmass juts out in a straight line from close to Yawatahama Port out west-southwest along the Japan Median Tectonic Line. About 45 kilometres (28 mi) in length, it separates the Seto Inland Sea in the north from the Uwa Sea in the south. To the west is the Hōyo Strait, which separates Shikoku from Kyūshū. The Sadamisaki is the narrowest peninsula in Japan for its length.

location
Westernmost part of Shikoku, Ehime Prefecture, Japan
length
About 45 kilometers (28 miles)
narrowest_peninsula
Yes, for its length in Japan
population
8,196 (as of June 30, 2023)
households
4,396 (as of June 30, 2023)
notable_feature
Ikata Nuclear Power Plant
national_park
Cape Sada is part of Seto Inland Sea National Park; lower region is Uwa Sea Nati

Lore & Background

The Sadamisaki Peninsula is extremely mountainous. Until the completion of national highway Route 197, traversing the peninsula by car was quite inconvenient. The Sadamisaki "Melody Line" on Route 197 is famous for the scattered cherry blossoms trees along the mountains. This combination of mountains and ocean make the area a popular sightseeing destination, especially in the spring when the sakura (cherry blossoms) are in bloom. Ferries run from Misaki Port at the tip of the peninsula to Saganoseki Port (Ōita). As of June 30, 2023, Ikata Town reported a population of 8,196 people within 4,396 households.

Reader's Guide

The Sadamisaki Peninsula is the westernmost part of Shikoku, covered by the town of Ikata, Ehime Prefecture. It is home to the Ikata Nuclear Power Plant. The peninsula juts out in a straight line from close to Yawatahama Port out west-southwest along the Japan Median Tectonic Line. At the tip of the peninsula is Cape Sada, designated as a national park of the Seto Inland Sea. The lower region is designated as the Uwa Sea National Park land. The Sadamisaki "Melody Line" on Route 197 is famous for the scattered cherry blossoms trees along the mountains. This combination of mountains and ocean make the area a popular sightseeing destination, especially in the spring when the sakura are in bloom. Ferries run from Misaki Port at the tip of the peninsula to Saganoseki Port (Ōita).

Did You Know?

Frequently Asked Questions

What is the Sadamisaki Peninsula?

It is a long, slender stretch of land forming the western tip of Shikoku island in Ehime Prefecture, Japan. The area falls under the town of Ikata and is also known by the alternate name "Misaki Peninsula."

Why is Sadamisaki Peninsula famous for being narrow?

At roughly 45 kilometers in length, it holds the distinction of being Japan's narrowest peninsula relative to its length. The landmass extends in a nearly straight line along the Japan Median Tectonic Line, splitting the Seto Inland Sea from the Uwa Sea.

Where exactly is Sadamisaki Peninsula located?

It sits at the far western edge of Shikoku in Ehime Prefecture, Japan. Geographically, the peninsula acts as a divider between Shikoku and the nearby island of Kyūshū.

What notable structure is on Sadamisaki Peninsula?

The Ikata Nuclear Power Plant is the most prominent landmark on the peninsula and the feature most people associate with the area.

How many people live on Sadamisaki Peninsula?

As of mid-2023, the peninsula is home to about 8,196 residents spread across roughly 4,396 households. It remains a small, sparsely populated community centered around the town of Ikata.

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