Sail Training Ship Nippon Maru

Sail Training Ship Nippon Maru is a preserved 1930 four-masted sail training ship permanently docked at Nippon Maru Memorial Park in the Minato Mirai district of Yokohama. This is not the ship currently training cadets at sea today. That vessel is a separate, later Nippon Maru, built in 1984 and operated by the Japan Agency of Maritime Education and Training for Seafarers (JMETS), which took over the name and mission when this 1930 ship retired. The two ships share a name and a training purpose but are physically different vessels from different decades. This page covers only the 1930 ship, now a museum vessel open to visitors in Yokohama.

Two other ships are commonly confused with this one. Kaiwo Maru, launched the same year in 1930, was this ship's sister vessel, built to the same design for the same training role. NYK Hikawa Maru, moored a short walk away in Yokohama's Yamashita Park, is a different kind of ship entirely, a 1930 ocean liner that once carried passengers across the Pacific rather than a sail training ship. Nippon Maru and Hikawa Maru are often visited on the same Yokohama waterfront day, but they tell different maritime stories and are covered as separate attractions.

Kawasaki Shipbuilding Corporation in Kobe built Nippon Maru in 1930 as a sail training ship, originally operated by the Tokyo Institute for Maritime Training to teach merchant marine cadets seamanship, navigation, and the handling of a traditional square-rigged sailing vessel. Over a 54-year career at sea, from 1930 to 1984, the ship trained roughly 11,500 cadets in the skills needed to sail a fully rigged vessel.

Nippon Maru was retired from active training duty in 1984 and permanently moored at Nippon Maru Memorial Park in 1985, where it has remained open to the public ever since. In 2017, Japan's Agency for Cultural Affairs designated the ship a National Important Cultural Property, recognizing it as one of the best-preserved large sailing ships of its era. That designation places Nippon Maru among a select group of vessels in Japan with formal cultural heritage protection.

The ship sits in a dry dock at Nippon Maru Memorial Park, a site maintained by the City of Yokohama and shared with Yokohama Port Museum, a separate indoor museum covering the history of the Port of Yokohama. The two attractions are operated together and sold on a combined ticket, but each is its own destination with its own admission and its own focus. This page covers the ship itself, its history, and what visitors can see aboard. The museum's exhibits, simulators, and Port of Yokohama history are covered on the separate Yokohama Port Museum guide.

Whether Nippon Maru is worth a stop depends on how much time a visitor has in Minato Mirai. A self-paced walk across the ship's decks and into its accessible interior spaces typically takes 45 to 60 minutes, a manageable addition to a waterfront walk that also takes in Yokohama Landmark Tower, Yokohama Red Brick Warehouse, and Minato Mirai 21. Visitors with a genuine interest in maritime history or ship design get the most out of a visit. A traveler with only a few minutes to spare in the district may prefer to admire the ship's silhouette from outside rather than buy a ticket.

Aboard the ship, visitors can walk the open sterncastle deck, see the rigging and four tall masts up close, and step inside preserved interior spaces including the crew quarters, the captain's quarters, and the helm. Getting between decks involves narrow stairways typical of a 1930s sailing vessel, so wheelchair and stroller access is limited to the top sterncastle deck. A full tour of the interior is not step-free, and families with mobility needs should plan around this limitation rather than assume full access.

About 12 times a year, the operator fully unfurls all of the ship's sails in a display called sohanten, transforming the moored ship into the fully rigged sailing vessel it once was at sea. It is the single best reason to time a visit deliberately rather than drop by at random. Exact dates change from year to year, so check the operator's current schedule before planning a trip around it.

Golden hour, in the hour before sunset, is when the ship photographs best, with its rigging silhouetted against the Minato Mirai skyline and the harbor light. Exterior and deck photography is unrestricted, though some interior display areas may carry their own photography rules, so check on-site signage once aboard. As with any preserved historic vessel, Nippon Maru occasionally closes for maintenance, so check the official website for the current schedule and any closure notice before visiting.