Hashima Island
About this place
Hashima Island, also known as Gunkanjima ("Battleship Island") due to its silhouette resembling a warship, is a small island off the coast of Nagasaki, Japan. Once the most densely populated place on Earth, it was a fully self-contained coal mining community with apartment blocks, schools, a hospital, and recreational facilities all crammed onto a 6.3-hectare island. Today it is a UNESCO World Heritage Site and one of Japan's most iconic abandoned locations, its concrete ruins slowly crumbling into the sea.
Historical Background
Coal was discovered on the island in 1810, and Mitsubishi purchased it in 1890 to develop undersea coal mines. The island was progressively built up with concrete high-rise buildings from the 1910s onwards — some of the earliest reinforced concrete structures in Japan. At its peak in 1959, the island housed 5,259 people. As petroleum replaced coal in Japan's energy mix, the mine became uneconomical and was closed on 15 January 1974. All residents left within three months. The island was opened to limited tourism in 2009 and inscribed as a UNESCO World Heritage Site in 2015.
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Field Intelligence
Difficulty
ModerateClimate
SubtropicalVisit Duration
Half dayHow to Get There
BoatAverage Cost
Mid-rangeBest For
Activities
Local Tips
- Book boat tours from Nagasaki harbour well in advance. Access is restricted to a viewing path; the interior is off-limits. Bring a telephoto lens. Tours can be cancelled in rough weather. Pair with the Nagasaki Peace Memorial for a full day.
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