About 15 kilometers off the coast of Nagasaki, in the East China Sea, there is a small island that houses blocks of concrete and semi-ruined buildings, surrounded by a retaining wall that protects them from the Pacific. The island is called Hashimaalthough it is also known as “Gunkanjima”which in Japanese means “battleship island.” and its history It is fascinating and dark in equal parts..
An island that was born from coal. All infrastructure was built for one reason: coal. The mineral was detected on the seabed beneath the island around 1810, but its systematic exploitation did not begin until 1887. In 1890, the Mitsubishi Goshi Kaisha company purchased the island and took control of the underwater mines.
Extracting coal from the bottom of the sea was extraordinarily complicated, as the miners worked in tunnels that went up to a kilometer below the surface, with temperatures of 30 degrees and very high humidity. Between 1891 and 1974, the island produced some 15.7 million tons of coal.


A decision that changed everything. Moving workers daily from Nagasaki was expensive and inefficient, which is why Mitsubishi made the decision to build an entire city on the island. In 1916, the company erected the first concrete building armed of large dimensions in the history of Japan, and it was precisely on this same island. These types of buildings were the only way for the buildings to withstand the typhoons that hit the region every autumn.
A compressed city. During the following decades, Hashima grew upwards because he could not grow sideways. The island measures just 480 meters long and 160 meters wide. And yet, at its peak, in 1959, It housed 5,259 peoplemaking it the most densely populated place on the planet at that time.
On that small piece of land there were apartments, schools, a hospital, shops, a cinema, public baths, a swimming pool, rooftop gardens, a pachinko parlor and even a cemetery. Of course, there were no cars, since there was neither space for them nor did it make much sense.


a hidden face. Hashima’s story has, however, a deep shadow that for decades tried to ignore. From the 1930s until the end of World War II, Mitsubishi used forced labor at its facilities on the island. There, both Korean conscript civilians and Chinese prisoners of war were forced to work in extreme conditions.
According to an academic article published on Tandfonline, around 1,000 Koreans were taken to Hashima between 1939 and 1945. Estimates of the death toll vary. On the one hand, in the book “Life in Gunkanjima 1952-1970: Report of the investigation into the Hashima homes”, by academic Uzō Nishiyama, the death toll is estimated at 137; other non-Japanese sources raise that figure to more than 1,300.
The workers descended into the mines during extreme hours, and any resistance was punished brutally. They were not workers, they were slaves, and escape was practically impossible, since the nearest coast was more than 18 kilometers away by open swim.
Abandonment. In the 1960s, oil began to displace coal as an energy source in Japan. Mines across the country were closing one after another. Hashima’s was no exception. Mitsubishi officially closed the mine in January 1974. and the residents left the island on April 20 of that same year. The exodus was so rapid that many left behind furniture, clothing, photographs and all kinds of personal belongings.


In a matter of weeks, a city of more than five thousand people was turned into a ghost scene. For the next thirty years, Hashima remained closed to the public and was slowly devoured by typhoons and sea salt.
movie set. In 2002, Swedish filmmaker Thomas Nordanstad visited the island accompanied by Doutoku Sakamoto, a man who had grown up there as a child, and filmed a short documentary. Years later, Nordanstad met Daniel Craig in Stockholm, while he was filming ‘The men who didn’t love women‘. He told him the story of Hashima. According to collect world, Nordanstad thought for a time that the actor wanted to buy the rights to the documentary, but that was not the case. Two years later it was released skyfall (2012).
In the film, the abandoned island serves as the lair of the villain Raoul Silva, played by Javier Bardem. The producers traveled to Hashima to consider filming there, but concluded that the buildings were too unstable and dangerous. Therefore, they ended up building a replica at Pinewood Studios in the United Kingdom. The exterior images of the island that appear in the film are the only ones shot on location.
World Heritage with controversy. In 2015, the island It was declared a World Heritage Site by UNESCO, within the category “Sites of Japan’s Meiji Industrial Revolution”. However, this designation came accompanied by diplomatic problems. South Korea initially objected because Japan did not recognize the use of forced labor on the island. In the end they reached an agreement: Japan agreed to include that part of the story in its materials, but they didn’t do their part.


In 2021, the UNESCO Committee issued a resolution in which they expressed regret that Japan had not provided sufficient information on forced laborers. In fact, the Industrial Heritage Information Center, opened in Tokyo in 2020 to lend credibility to that narrative, was criticized for including testimonies that denied the existence of slavery conditions on the island. As of today, the debate has not yet been closed.
A tourist destination with scars. Since 2009, Hashima can be visited in small groups organized from the port of Nagasaki. The tour lasts approximately one hour and is strictly delimited for safety reasons. In fact, 95% of the island remains restricted to visitors.
Images | Wikimedia Commons

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