Antwerp 1920-American swimmers (USA), ROSS Norman on left and KAHANAMOKU Duke Paoa on right.
Swimmer Duke Kahanamoku Diving
Side view of American swimmer and surfing pioneer Duke Kahanamoku (1890 - 1868) preparing to dive in his fourth Olympic meet, circa 1920. He won gold medals in the 100 meter freestyle event in 1912 and 1920, and was considered the 'father of modern surfing.' (Photo by American Stock/Getty Images)