
Overview
Iwaishima is an island of Japan's Inland Sea, part of the town of Kaminoseki in Yamaguchi Prefecture. It lies at the boundary of the Suō-nada and Iyo-nada seas, ringed by some of the Inland Sea's noted fishing grounds, and counted among the Kumage Islands. On its steep slopes a village of packed-stone walls clusters together, and the island preserves its own rituals and a distinctive fishing dance—a place where a singular way of life still breathes.
Highlights
- ●An island in noted Inland Sea fishing grounds at the Suō-nada / Iyo-nada boundary
- ●A name said to come from a rite blessing travelers, and a unique fishing dance
- ●A singular island life as one of the Kumage Islands
- ●A history known nationwide for the residents' long stand
History
The name Iwaishima is said to derive from an ancient ritual of blessing passing travelers, and the island is home to a ceremonial fishing dance unique to it. In 1982, when the Chugoku Electric Power Company proposed building a nuclear power plant nearby, many residents opposed the plan, and the island's fishing cooperative voted overwhelmingly against it. In January 1983 about 400 islanders staged a protest march—the first of more than 1,000 protests—and opposition grew still wider after the Fukushima disaster of March 2011.
Access
The usual way to reach the island is by regular ferry from the mainland side of Kaminoseki. It sits at about 33.78°N, 131.97°E, at the south-eastern edge of Yamaguchi Prefecture. Sailings are limited, so check departure times and any cancellations through official sources before planning your trip.
Best season
For calm seas and island walking, the settled weather from spring into early summer, and again in autumn, is recommended. Timing a visit with the island's rituals or festivals offers a taste of its distinctive culture.
Map
33.7811, 131.9725 · Wikidata
Suggested itinerary
- 1Cross to Iwaishima by regular ferry from the Kaminoseki mainland port
- 2Walk the lanes of the packed-stone-wall village to feel island life
- 3Encounter the island's handed-down rituals and fishing dance
- 4Spend time gazing at the sea where Suō-nada meets Iyo-nada
Did you know?
💡 As its name is said to come from a rite that “blesses” travelers, Iwaishima has a history of welcoming those who arrive. The residents' long-sustained stand made the name of this small island known across the country.
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