2012 Ironman World Championship 70.3 By Triathlete.comPublished Sep 10, 2012 comments Tweet Share Share Print << Back to StoryOpen full size in new window. The water at Lake Las Vegas was a warm 82 degrees F. comments Tweet Share Share Print Liz Hichens is the Web Producer of Triathlete.com. She is an Ironman and marathon finisher and fan of all endurance sports. Follow @lizhichensFollow on Google+All articles by Liz