Rayana Tanimoto teaches her 5-year-old twin daughters, Eloa, left, and Ayla, how to surf at Maresias Beach in Sao Sebastiao, Brazil, on Nov. 27. She deployed snaps, cutbacks and aerials to win the under-18 women’s title and then emerged from the water sitting atop the shoulders of four friends, mimicking her idol, Gabriel Medina — a world champion raised at …
