Shikoku: Japan's Smallest Main Island of Four Provinces
Shikoku, whose name literally translates to "four provinces," holds a unique position as the smallest of Japan's four main islands. Located south of Honshu and northeast of Kyushu, this island offers a blend of rugged mountain landscapes, spiritual traditions, and rich culinary heritage. Despite its smaller size, Shikoku is a land of profound character, defined by its four distinct prefectures: Ehime, Kagawa, Kōchi, and Tokushima.
Key Facts
- Total Area: 18,801.73 km²
- Highest Point: Mount Ishizuchi (1,982 m)
- Population: Approximately 3.5 million
- Major Cities: Matsuyama, Takamatsu, Kōchi, and Tokushima
- Primary Geography: Mountainous interior with northern plains and southern coasts
- Cultural Highlight: The 88-temple pilgrimage
Geography and Landscape
The geography of Shikoku is characterized by a dramatic divide. A central mountain range runs east to west, splitting the island into two distinct regions. The northern subregion faces the Seto Inland Sea and is home to most of the island's population and major urban centers. In contrast, the southern region faces the Pacific Ocean and is defined by mountainous terrain and a more sparsely populated landscape.
The island's highest peak is Mount Ishizuchi in Ehime Prefecture, reaching an elevation of 1,982 meters. While Shikoku is notable for having no active volcanoes today, geological history shows significant prehistoric volcanic activity, including a major caldera near Mount Ishizuchi approximately 14 million years ago. The Yoshino River, the island's major waterway, flows 196 km from the vicinity of Mount Ishizuchi to the sea at Tokushima, offering world-class white-water rafting in the Oboke Koboke sections.
Regional Overview
| Feature | Details |
|---|---|
| Prefectures | Ehime, Kagawa, Kōchi, Tokushima |
| Highest Elevation | 1,982 m (Mount Ishizuchi) |
| Major Waterway | Yoshino River |
| Climate Influence | Seto Inland Sea (North) and Pacific Ocean (South) |
Culture and Traditions
Shikoku has historically maintained a degree of isolation, allowing it to preserve traditional Japanese vegetation and architectural styles. This sense of preserved history is perhaps most evident in its spiritual life.
The 88-Temple Pilgrimage
One of the most famous cultural aspects of the island is the 88-temple pilgrimage. Established by the Heian-period priest Kūkai, this spiritual journey involves visiting 88 specific temples. Modern pilgrims often travel by bus, but many still follow the traditional paths, frequently wearing white jackets marked with the phrase dōgyō ninin ("two traveling together").
Festivals and Celebrations
The island is home to vibrant seasonal festivals. In Tokushima, the Awa Odori dance festival takes place every August during the Obon period, drawing massive crowds. Kōchi Prefecture hosts the energetic Yosakoi festival every August, which has become a major attraction for dancers nationwide.
Culinary Delights
The local diet is heavily influenced by the island's geography. In the north, intensive land use and a warm climate support diverse fruit production, including citrus, peaches, and grapes. Kagawa Prefecture is particularly famous for Sanuki udon, a thick wheat noodle that became a dietary staple during the Edo period due to local wheat production.
In the south, the mild winters allow for specialized truck farming of out-of-season vegetables. Kōchi is also renowned for its signature dish: seared bonito. Throughout the island, citrus fruits like yuzu and mikan are abundant and are deeply synonymous with the region's identity.
Sports and Society
While Shikoku has historically lacked teams in Japan's top-tier professional baseball or rugby divisions, it has a growing presence in football (soccer). The Tokushima Vortis have notably competed in the J1 top flight. Other regional teams include Ehime FC and FC Imabari. In the realm of individual sports, Takamatsu native Mikuru Suzuki is a recognized two-time Women's World Champion in darts.
Travel and Infrastructure
Shikoku is connected to the main island of Honshu via three major expressways: the Kobe-Awaji-Naruto Expressway, the Nishiseto Expressway, and the Seto-Chūō Expressway. The Great Seto Bridge network, completed in 1988, provides a vital link between the central part of Shikoku and Honshu.
For rail travelers, the Shikoku Railway Company (JR Shikoku) operates several key lines, including the Dosan and Yosan Lines. While the island lacks a major international airport, four regional airports—Tokushima, Takamatsu, Kōchi Ryōma, and Matsuyama—provide essential domestic connections to cities like Tokyo and Osaka, with some international services to Seoul.
Frequently Asked Questions
What are the four prefectures of Shikoku?
The four prefectures that make up Shikoku are Ehime, Kagawa, Kōchi, and Tokushima.
What is the most famous food in Shikoku?
Sanuki udon from Kagawa Prefecture is one of the most famous foods, alongside various citrus fruits like yuzu and mikan, and seared bonito in Kōchi.
Is Shikoku a volcanic island?
Shikoku has no active volcanoes today, making it the largest of Japan's main islands to completely lack them, though it experienced volcanic activity in the prehistoric past.
How can I visit the 88-temple pilgrimage?
Pilgrims visit 88 specific Buddhist temples. While traditionally done on foot, many modern travelers use buses to complete the circuit.
What is the highest mountain in Shikoku?
Mount Ishizuchi, located in Ehime Prefecture, is the highest mountain on the island at 1,982 meters.