HALF IRON OCEANSIDE TRIATHLON: Where Endurance Meets Coastal Beauty Swim: Dive into the rolling start at Oceanside Harbor, navigating pristine waters in a single counterclockwise loop. Brace yourself for the invigorating challenge of a 61°F / 16°C water temperature. Bike: Embark on an exhilarating cycling adventure from Oceanside Harbor through iconic Camp Pendleton. Conquer San Mateo Hill and two other formidable climbs before cruising back to the harbor against an unyielding headwind. Run: ...