I've noticed super fit types at my gym doing 2 classes one after the other. I think doing yoga after body pump would work, good for stretching but could never do 2 cardio classes in a row!
Today I impressed myself though. Turned up at the gym an hour early by mistake so I did 50 mins fast hill walking on the treadmill then body pump. Then had a massive brunch which, to be fair, I did earn 