GrindTV (blog)Pro surfer Josh Kerr's 9-year-old daughter Sierra Kerr is a surfing prodigyGrindTV (blog)Meet 9-year-old Sierra Kerr, the daughter of Championship Tour pro surfer Josh Kerr. Clearly the surf steeze was passed on to Sierra, as we see in her latest clip from an Indonesia trip this summer. RELATED: 8-year-old girl skating prodigy Sky Brown ...and more »