Museum Ship Sōya — Japanese Icebreaker PL107
Sōya (宗谷, PL107) is a historic Japanese icebreaker preserved as a museum ship at the Odaiba waterfront in Tokyo, moored beside the Museum of Maritime Science. Launched in 1938 as a cargo vessel and later converted for military and scientific service, Sōya gained lasting fame as the support ship for the first Japanese Antarctic Research Expedition in 1956–1958. The vessel served continuously through some of the 20th century’s most historic events before retirement in 1978, and now offers visitors a rare opportunity to explore a fully preserved Antarctic expedition ship with an immersive 360° virtual tour available online.
At a glance
- Type
- Historic museum ship — icebreaker / Antarctic expedition vessel
- Period
- Launched 1938; Antarctic service 1956–1962; museum ship from 1978
- Style
- Mid-20th-century Japanese naval and scientific vessel
- Location
- Odaiba, Shinagawa, Tokyo, Japan
- Coordinates
- 35.6190° N, 139.7736° E
Overview
Sōya is named after the Sōya Subprefecture in Hokkaido and carries the designation PL107 from her final service as a Japan Coast Guard patrol vessel. The ship’s extraordinary biography spans cargo transport, wartime supply missions, postwar repatriation voyages, Antarctic icebreaking, and decades of patrol duties — an operational history unmatched by virtually any other surviving Japanese vessel of the period. As a museum ship she offers visitors a vivid encounter with Japan’s maritime and scientific heritage of the mid-20th century.
History
Built at the Harima shipyard in 1938, Sōya was originally designed as a supply and cargo ship for service in the Sea of Okhotsk. During the Second World War she served as a supply vessel for Japanese garrisons in remote Pacific and Arctic postings. After the war she carried out repatriation missions, returning Japanese nationals from Sakhalin and other territories. Her most celebrated chapter began in 1956 when she was selected as the support ship for Japan’s first Antarctic Research Expedition, making multiple voyages to Showa Station in Antarctica before being succeeded by the purpose-built icebreaker Fuji in 1962. She was transferred to the Japan Coast Guard and retired in 1978, subsequently preserved at Odaiba.
What you see
Visitors can board Sōya and walk through the engine room, bridge, crew quarters, and expedition areas, all preserved in period condition. Exhibits and displays installed aboard document the Antarctic expeditions, the famous episode of abandoning sled dogs at Showa Station in 1958 (which inspired the film Antarctica), and the ship’s wartime history. A 360° virtual tour of the ship is available online for those who cannot visit in person. The vessel sits moored at the Odaiba waterfront with views across Tokyo Bay.
Cultural significance
Sōya holds an iconic place in Japanese popular memory largely because of the story of the fifteen Sakhalin Husky sled dogs left behind at Showa Station in 1958 when the expedition was forced to withdraw early due to severe weather conditions — eight of the dogs survived until a rescue team returned the following year, a story that became a national legend. The ship embodies Japan’s postwar scientific ambition, its reconnection with international exploration after the war, and the human and animal bonds formed under extreme conditions.
Practical information
- Address
- 3-1 Higashiyashio, Shinagawa, Tokyo 135-8587, Japan (alongside Museum of Maritime Science)
- Hours
- Check official website for boarding times and access schedule
- Virtual tour
- 360° virtual tour available online — check Museum of Maritime Science website
- Admission
- Check official website
Getting there
Take the Yurikamome monorail from Shimbashi station to Fune-no-Kagakukan station (approximately 20 minutes). The ship is moored directly at the Museum of Maritime Science waterfront. Water bus connections from Hinode Pier are also available. The Rinkai Line stops at Tokyo Teleport station, a 10-minute walk from the site.