S P O T / SPOT-057
Kamijima Island Observation Post Ruins
神島 監的哨跡かみしま かんてきしょうあと
Kamijima is a small island in Ise Bay, two thousand inhabitants, no cars, reached by a thirty-minute ferry from Toba and known mainly as the setting for Yukio Mishima's novel The Sound of Waves. Tucked into the cliffs on the island's southeastern side is a relic of a much darker era: a concrete observation post built by the Imperial Japanese Army to monitor the bay during the Second World War, abandoned in 1945 and slowly being reclaimed by salt-spray and vines ever since. Reaching it requires a fifty-minute walk along the island's narrow coastal trail, through pine forests and past tiny shrines, until the rectangular concrete structure appears suddenly at the edge of the sea. From its slit windows the view is breathtaking — open ocean, distant ships, the Atsumi Peninsula on the horizon — and the contrast between that beauty and the weapon-spotting purpose for which the building was constructed is the entire experience. The structure is unfenced and on public land, but the island offers no facilities; this is an observational visit, not a destination.

H I G H L I G H T S
Highlights
- 01A reinforced-concrete WWII observation post slowly disappearing into the cliffs of a small Ise Bay island
- 02A 50-minute coastal walk through Kamijima's pine forests delivers you to the ruin with views that contradict its original purpose
- 03The same island that Mishima used for The Sound of Waves — folk literature and military archaeology layered on a tiny rock in the sea
A C C E S S / M E T A
Essentials
- Location
- Mie Prefecture Toba City
- Address
- 三重県鳥羽市神島町
- Fee
- 見学自由目安
- Hours
- 見学自由目安、船便時刻要確認
- Status
- candidate
- Walk
- 50 min
- Parking
- 駐車場あり(詳細は公式要確認)
- Time
- 60〜90分