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Boise Ironman 70.3 - Swim Course

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Boise Ironman 70.3
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Swim 1.2 miles

The Boise Ironman 70.3 swim course is a one loop swim course in at Lucky Peak Reservoir. The swim starts and finishes at the boat launch at Lucky Peak Reservoir. The swim course is a rectangular shape with three turns. Athletes must swim in a clockwise direction, keeping the buoy markers to their right. Yellow buoys will mark the course; orange buoys will mark the turns. At T1 Place your wetsuit/swim gear and empty bike gear bag inside the black wetsuit/swim gear bag and leave the bag at your bicycle rack. Following the swim, volunteers will gather all black wetsuit/swim gear bags from T1 and transport them, along with the morning clothes bags, to the Boise Centre for you to collect following the race.

  • average water temperature on race day is 60 degrees F
  • fresh water
  • wave start

Prior to race day, acclimate yourself to the water conditions by participating in the practice swim on Saturday, 11:00 a.m. – 2:00 p.m.