Tumble Turn. Focus onto the wall five metres away and aware of how many strokes it takes you to reach the wall. On the penultimate stroke the hand is taken down under the body at right angles towards your opposite hip in order to pivot around the wall. Do not execute the frontcrawl tumble turn in a head over heals fashion as you will be left on your back. As the feet are planted on the wall the leading arm finds a straight direction to follow whilst underwater. Once the feet have been firmly placed they drive off the wall with both hands together underwater, push off underwater to create a streamlined position, hold for two seconds after the push off; This will keep the body under the oncoming wave you have created and cut back on resistance; After a short glide start to kick with frontcrawl or dolphin legs underwater for another two seconds, the head then breaks the surface first to resume full stroke.