Will I burn more calories in the pool than in the gym?
It is hard to compare, as there are a variety of things you can do in the gym. Lifting weights isn’t aerobic exercise and you won’t be burning a high number of calories doing it. However, if you are doing circuits or an aerobics class this will use up more calories. In comparison, an hour's fast, vigorous freestyle lap swimming for an 11 stone person will burn 704 calories.