I always do the Oly. Swim is brutal at 7800ft. It's a fun event but not a lot of people doing the half. Kinda lonely out there and I think only 1 aid station on the bike. Run has a big hill where u turn at the top and come back down. That's the first 4.5mi. Then it's a lonely run on lake Mary rd. out n back to finish. http://www.TriScottsdale.org