The swim course: Set high in the Alps, the mountain lake where you'll swim is crystal clear. More than likely, you'll swim in a wetsuit. The swim start is in age group waves, but you still get a bit of a "mass start feeling" so be prepared for the washing machine. A triangle shaped swim course. Nothing too fancy, although you may be looking into the sun so sighting the bouys can be a challenge. As you see on the video, you get pulled out of the water by volunteers.
T1 - It's a long run to T1. Running out of T1 with your bike is also quite a distance.
Bike - They've changed the bike course this year. It is about 50 percent different than in 2013, and much, much more challenging. Total elevation is 2654 feet, with about 2000 feet of that between miles 14-23. Do your big hill repeat workouts to prepare for this baby! Below is a Map My Ride profile of the course. It's better than what Ironman has on-line.
Bike course: http://www.mapmyrun.com/routes/view/394446122
Once you leave the T1 urban area you head into a nature preserve that's rall quite nice, but you're on a narrow bike trail for a mile or so. Watch out for the wooden bridges. If they're wet, you can go down easily. I saw it happen last year. Once out on the main roads you can settle down and fly until about mile 14 or so when you take a left hand turn and go for a good long climb. I do mean long too. Pace yourself well on this mountain climb, otherwise it may cost you a good race. More or less you climb from mile 14 to mile 21 where you hit the steepest part of the climb for over a mile. The views are great and worth a quick glance. After that there is plenty of downhill to recover on. There are few mid size rolling hills after that, but nothing too much to consider until about the 50 mile point where you head into the town of Kaprun. There are a few sharp turns in Kaprun so keep your eyes open for those. At about mile 52 you hit another wooden bridge. You'll see the city off in the distance, but don't be fooled you have a few miles to go. Eventually you head back into T2 the same way you came out.
T2 - I had trouble finding my bag last year. Can't remember why, but memorize where yours is.
Run - The run course is very flat, partially shaded, mostly on asphalt, but some concrete. There are a few tiny inclines as you do the loops in Zell am See. The crowds are mostly in the town with a smattering here and there. For a good portion of the race, you'll be able to watch the other competitors as they are on the other side of the path. Good fun. You finish right in the center of town, about 2k from transition, where your bike is. That is a bit of a pain. But overall, I love this race and the setting. It is so incredibly beautiful - this is an excellent destination race.
Kate and Race Force have a great spot making bike pick up and drop off incredibly convenient.