I want to start doing 5 or 6 1-2 hour cardio sessions each week. Does anyone know a good website or place to find a huge list of conditioning drills? Aside from interval sprints, tabata, and some plyo, i don't really know that i have a ton of stuff to keep me interested in cardio enough to do it as much as id like to. my goal is to have ungodly endurance and explsosiveness. Right now my cardio is a bit better than average, but i want it to be to a point where getting tired in the ring is unheard of. any help would be great.