Renneker, Mark

Loquacious big-wave rider, explorer, and health advocate from San Francisco, California; founder of the Surfer's Medical Association. Renneker was born (1952) in Chicago, Illinois, the son of a psychiatrist father and artist mother, moved with his family to Los Angeles at age four, and began surfing at 10. He received a B.S. in biology and epistemics from U.C. Santa Cruz in 1975; four years later he took his M.D. from U.C. San Francisco; in 1990 he began a private practice specializing in res...