The ship "Sant Juan Bautista," the Keicho Diplomatic Mission Ship, had actually crossed the Pacific Ocean twice 250 years before the year determined by a widely-accepted theory in which the first Japanese ship is said to have crossed the Pacific Ocean, the "Kanrin-maru" in the first year of Manen (1860). The Sant Juan Bautista Museum has an exhibition of the "Sant Juan Bautista," which was reconstructed as a successful achievement of Japan's wooden ship manufacturing technology, and efforts are devoted to transmit the wooden sailing ship culture and shipwright techniques, which are vanishing these days.