The Ugo Link Ship is a directional ferry connecting Uno Port in Tamano City, Okayama Prefecture and Takamatsu Port in Kagawa Prefecture. The actual distance is 11.3 nautical miles. Later, with the opening of the Seto Bridge, this route gradually lost its function and eventually ceased. Among them, the anchor of the Sanuki Maru was placed near Takamatsu Port. The most well-known among the Yugao liaison ships is the shipwreck of the Ziyun ship. Many students have been sleeping in the sea ever since.
On May 11, 1955, it was a sad day for many parents in Japan. On this day, 168 children on a school excursion on the Japanese National Railways’ Ugo liaison ship, the Ziyun, sank into the sea forever. In the case that the sea fog warning has been issued, the Ziyun still set sail. As a result, the third highest maru, which was already in the course, was unable to avoid the dense fog and violently hit the Ziyun, just a few minutes later. Ziyun sank to the bottom of the sea. Nowadays, near the Takamatsu Pier, the anchor of the salvaged Ziyun ship has been placed here forever.
Across the road from Takamatsu Tamamo Park, next to the Clement Hotel, there is a rusty anchor. This is the anchor of the Yugao liaison ship. In 1955, the Ugo liaison ship Ziyun collided with a large cargo ship in the Seto Inland Sea, causing 168 deaths, most of them children who were absent from school and traveling, making it one of the five major disasters in Japan after the war. The anchor of the Yugao liaison ship is placed here to commemorate this sad history.