Toe Touch: Stand in shallow water about 5 feet from pool's edge, facing it. Jog toward wall. Stop and tread water with hands as you contract abs and lift legs out of water, touching pool's edge with toes (as shown). Release; jog back to start. Repeat, adding one touch each time until you complete 10 touches total. Technique tip This move counts as calorie-scorching cardio, so keep up the pace. Translation: Don't lose speed on the turnarounds.