HHMS Kaimiloa was the first and only ship of the . The ship was formerly the Explorer, a 170-ton schooner, built in England in 1871. Kaimiloa sailed from Hawaii to Samoa and other Pacific islands in 1887 in an effort by King Kalākaua to form a confederation of Polynesian states to counteract European imperialism. The instance nearly resulted in military conflict between the Kingdom of Hawaii and the German Empire, who viewed Samoa as their possession in the Pacific. It was also used as a training ship.