On his last voyage, Cook again commanded HMS "Resolution", while Captain Charles Clerke commanded . The voyage was ostensibly planned to return the Pacific Islander, Omai to Tahiti, or so the public were led to believe. The trip's principal goal was to locate a North-West Passage around the American continent. After dropping Omai at Tahiti, Cook travelled north and in 1778 became the first European to visit the Hawaiian Islands. After his initial landfall in January 1778 at Waimea harbour, Kauai, Cook named the archipelago the "Sandwich Islands" after the fourth Earl of Sandwich—the acting First Lord of the Admiralty.