IRONMAN 70.3 Santa Cruz, where the swim is colder than your ex's heart, the bike course is more scenic than a postcard, and the run is flatter than that one time you tried telling a joke without any punchline. SWIM: imagine diving into the Pacific Ocean at Santa Cruz Main Beach, next to the historic Boardwalk. Swimmers will be doing the ocean version of a conga line around the Wharf, trying not to mistake each other for particularly enthusiastic seals. The water temperature is a brisk ...