I've always loved doing triathlons, but about two years ago my back went out, and it turns out that I have two degenerated disks - one of them is herniated. My doctor says, "running is out". Since then I've reduced my workouts and subsequently put on 15 pounds! I've been looking for an alternative to triathlons in search of multi-sport events that don't include running. Heck they don't even have to be multi-sport. I just get bored doing the same old thing which is why I haven't become a biker (never much of a swimmer). Most of the duathlons I've seen are run+bike. Does anybody have any suggestions?