5) SWIMMING LAPS
improve your aerobic endurance by swimmingSwimming is an excellent way to work on your breathing technique, which is essential to maximizing your cardio potential.
Perform the following activity using a stroke that you’re most comfortable with:
Swim from one end of the pool to the other at a fast pace
Repeat for several laps (depends on size of pool) without any breaks in between
Rest for 2 minutes and repeat
If the pool size is relatively small (5-10 meters) then around 4-5 laps would be recommended. Time your swims and whatever time you get at the end, your aim is to beat it on your next go.