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Teach yourself to barefoot waterski in an afternoon: it only requires a good set of abs, and a friend with a ski boat and a boom.
Step 1Boom
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The boom is a long metal pole protruding from the side of the boat. It's usually attached to a fixed post in the center of the boat thenrests against the side of the boat, and is stabilized by lines running to the bow of the boat. The boom can be raised and lowered to accommodate different activities and user heights.
A boom is quite necessary for beginners, as trying to learn barefooting on a long line generally results in heavy bruising and very little successful barefooting.
Then you cautiously test adding weight to the non-ski foot - be sure to squat down REALLY low! Standing up too tall = crash. Then bend the knee of your ski-foot and let the water pull the ski off - no need for kicking or thrashing. Quickly plant the former-ski foot... and away you go!
Also, don't expect to Foot all the way around the lake- just go a couple hundred yards. Otherwise your body will get lazy and you'll catch a foot ... BLAM, brutal crash! Instead, squat down to 3-point and lean back into a "mummy" pose, gliding to a ker-plunk.