Prince Harald Coast is a portion of the coast of Queen Maud Land, Antarctica, encompassing Lutzow-Holm Bay, lying between Riiser-Larsen Peninsula, at 34° E, and the east entrance point of Lutzow-Holm Bay, marked by the coastal angle at 40° E. It was discovered during a flight on February 4, 1937, by Viggo Widerøe, Nils Romnaes, and Mrs.