I have the utmost respect for anyone who competes in Iron Man Hawai'i. The area is beautiful, but parts of the race can be extremely hot. The marathon leg of the triathlon crosses through volcanic desert, and the beautiful sunny weather can make the marathon that much harder.
I used to live on the island, so the Iron Man event was a big deal. It was like the Superbowl for Hawaii. All of the hype surrounding the event lasted for days, and when the Iron Man Triathlon finally started, it lasted until midnight. Any racer that did not finish by midnight was disqualified. This is the ultimate endurance test. Maybe the only thing more grueling is the Badwater Ultramarathon; a 135-mile race through the 130-degree heat of Death Valley.