
Guida
Hashima, widely known as Gunkanjima (Battleship Island) due to its resemblance to the battleship 'Tosa,' is an artificial island located in Nagasaki City, Nagasaki Prefecture. Built on reclaimed land around rocky reefs, the island flourished as a major hub for undersea coal mining from the Meiji era through the Showa era. During the 1960s, it boasted the highest population density in Japan, characterized by dense clusters of high-rise reinforced concrete apartment buildings. In 2015, it was officially designated as a UNESCO World Heritage site under the 'Sites of Meiji Industrial Revolution in Japan.'
Hashima played a crucial role in Japan's modernization by providing high-quality coal. The island was a highly developed urban center, featuring schools, hospitals, movie theaters, and even entertainment facilities, allowing residents to live a complete life on the island. However, as the global energy focus shifted from coal to oil, the industry declined. Following the closure of the mine in 1974, the residents departed, leaving the island uninhabited. The current ruins serve as a profound testament to both the rapid industrial growth and the subsequent decline of the era.

The main attraction is the collection of high-rise reinforced concrete structures and the ruins of former residential and industrial sites. These buildings are historically significant as Japan's first high-rise apartment complexes. By participating in a landing tour, you can step onto the island to observe the unique urban structure and the traces of life within such a confined maritime space. Even from the boat, the sight of the island's perimeter walls and the striking silhouette of the ruins against the sea is unforgettable.
Visits to Gunkanjima are heavily dependent on weather and sea conditions. Landing is only permitted when wind speeds are below 5m/s, wave heights are below 0.5m, and visibility is above 500m. The best months to visit are February, March, April, May, October, November, and December, when weather tends to be more stable. Please note that during the summer or typhoon seasons, tours are frequently canceled or landings are prohibited due to rough seas. It is essential to check your tour schedule in advance.

Access to the island is exclusively through professional-operated 'Landing Tours.' Departing from Nagasaki Port, the journey involves a roughly 40-minute cruise. While time on the island is limited, the experience of walking through the former residential areas and industrial ruins is truly unique. Even if a landing is not possible due to weather, many tours offer sightseeing cruises that allow you to enjoy the panoramic views of the island from the sea.
The primary gateway to Gunkanjima is Nagasaki Port. The surrounding Nagasaki City is famous for its beautiful streets, historic churches, and temples, making it a popular destination to combine with a Gunkanjima tour. The nearby Takashima island also shares a similar coal mining history. Many cruise companies operate around Nagasaki Port, providing a great environment to enjoy sightseeing while waiting for your departure.
