Treading water comes down to two things: a steady kick that pushes water downward and small hand movements that keep you balanced. Most people can learn the basics in a single pool session, and with practice, you can build up to treading comfortably for five minutes or longer. The key is using smooth, efficient movements rather than thrashing around, which only burns energy and pulls you under.
Why Body Position Matters
Before you focus on your arms and legs, get your posture right. Stay as vertical as possible with your chin just above the surface. Lean back slightly if it feels natural, but avoid the urge to lift your chest or shoulders high out of the water. Physics works against you here: for every part of your body you push above the surface, an equal force pushes another part down. Trying to rise up wastes energy and makes you sink faster.
Keep your core engaged and your body relatively still. Think of your torso as a stable column while your arms and legs do the work beneath the surface. Relaxing your neck and jaw helps too, since tension in your upper body spreads quickly and leads to stiff, inefficient movements.
The Eggbeater Kick
The eggbeater is the gold standard for treading water. Water polo players use it almost exclusively because it keeps the body stable with no bobbing or dipping. It works by alternating one-legged breaststroke kicks in a continuous rhythm, so there’s never a pause where you start to sink.
Here’s how to do it:
- Starting position: Sit upright in the water with your knees bent and spread roughly hip-width apart. Your thighs should be close to parallel with the surface.
- The circular motion: Bring one knee up toward your chest with your heel near your butt. Flex that foot, then kick it outward and around in a circle, pushing water down and to the side with the sole of your foot. Once the foot completes the circle, point your toes and bring it back in.
- Alternate legs: As one leg finishes its circle, the other begins. The rhythm is continuous, like two pedals on a bike that never stop turning. Your legs should move in opposite directions at the same time.
The critical detail most beginners miss is that you’re not kicking straight down. You’re pushing water outward and downward in a circular path. That sideways component is what creates the constant upward force that holds you in place. A comparison study of skilled water treaders found that the eggbeater and upright breaststroke kick required roughly 20% less oxygen than flutter kicking or “running” in the water, making them far less tiring over time.
The Breaststroke (Frog) Kick
If the eggbeater feels too complex at first, the breaststroke kick is a great alternative. It’s the same motion you’d use swimming breaststroke, just performed while vertical. Bring both knees up and apart, flex your feet, then sweep both legs outward and together in a wide circular motion. You’ll feel a brief dip between kicks, which is normal.
Research on swimmers of different skill levels found that the breaststroke pattern produced the lowest heart rate and energy cost for beginners and intermediate swimmers. The eggbeater only became more efficient for experts who had practiced it extensively, like water polo players. So if you’re just learning, the frog kick is a perfectly smart choice. You can always add the eggbeater later.
What Your Hands Should Do
Your hands play a supporting role, providing balance and a little extra lift. The technique is called sculling: move your hands back and forth just below the surface in a figure-eight or sweeping pattern. Keep your fingers together, palms slightly angled so they push water downward on each pass. Think of spreading peanut butter on a table in front of you, using small, controlled strokes.
The movements should be compact. Your hands stay roughly in front of your body, no wider than your shoulders. You’re not slapping the water or waving your arms. If you’re doing it right, there’s almost no splash. As your kick gets stronger, you’ll rely on your hands less. In Red Cross swim programs, Level 5 and 6 swimmers are expected to tread for two full minutes using only their legs.
Common Mistakes That Drain Your Energy
The biggest mistake beginners make is overexertion: kicking too hard, moving their arms too fast, and generally fighting the water. This leads to rapid fatigue and a panicky feeling that makes everything worse. Treading water should feel like a slow simmer, not a full boil. Focus on maintaining steady pressure against the water rather than making big, forceful movements.
Another common error is “climbing the ladder,” where you push your arms straight down as if pulling yourself up a rope. This creates a brief upward surge followed by sinking, which wastes enormous energy. Keep your arm movements horizontal, sweeping side to side rather than pushing down. Novice swimmers use more than 40% more energy to stay afloat compared to experienced swimmers, and most of that difference comes from inefficient technique rather than fitness.
Holding your breath is also a problem. It creates tension throughout your body and interrupts your rhythm. Breathe normally, in through your nose and out through your mouth, the same way you would during a light jog.
Building Endurance Over Time
The American Red Cross uses treading benchmarks as milestones in its Learn-to-Swim program. Beginners start at 15 seconds in shoulder-deep water, progress to 1 minute in deep water, then 2 minutes using two different kicks, and eventually 5 minutes of sustained treading. These are useful targets for your own practice.
Start in water where you can touch the bottom if needed. Practice your kick while holding the pool wall or a kickboard, then gradually let go for longer intervals. Once you can tread for 60 seconds without distress, try switching between the breaststroke kick and the eggbeater every 30 seconds. Variety gives different muscle groups a break and helps you find which technique feels most natural.
Vigorous treading burns up to 11 calories per minute, which is comparable to running. But the goal when learning isn’t intensity. It’s smoothness. The less energy you spend per minute, the longer you can stay afloat, and that’s what matters in any real-world situation where you need this skill.
Survival Floating as a Backup
If you’re ever in open water and too exhausted to keep treading, survival floating can buy you time. Let your body go limp and float face-down with your arms and legs hanging naturally. When you need a breath, give a small breaststroke kick and lift your face just enough to inhale, then relax again. This technique requires almost no energy because you’re letting the water support your weight instead of fighting it. It’s not a replacement for treading, but knowing it exists takes some of the pressure off while you’re learning.