Open-Water Wave Swimming Technique: Using Wave Rhythm and Managing Energy Expenditure

Introduction

Surrounded by the sea on all sides, Taiwan’s eastern Hualien and Taitung boast stunning Pacific coastlines, attracting many athletes each year to participate in open-water swimming events or triathlons. However, the biggest difference between ocean swimming and lake swimming is the presence of “waves.” Many swimmers with excellent pool times feel lost once they enter a wavy sea, unable to maintain their rhythm and burning through energy quickly. This article will teach you how to “swim with the waves,” turning waves from an enemy into an ally.

Understanding Wave Types

Swimming off Taiwan’s east coast, you may encounter the following wave conditions:

• Swell: Long-period waves with large but relatively regular undulations, ideal for harnessing momentum
• Broken Wave: Crashing surf after entering shallow water, with strong impact that requires quick passage
• Chop: Short-period, irregular fluctuations, common on windy lakes or harbors, and the most difficult to handle
• With-current/Against-current: The influence of ocean current direction, sometimes more important than the waves themselves

Understanding the day’s wave conditions is the first step before entering the water. Spend 3–5 minutes observing from the shore to gauge the wave period (time from crest to crest) and direction, then decide on your swimming strategy.

Key Techniques for Wave Swimming

Harnessing Swell for Momentum

Swell can be effectively utilized. When you feel your body being lifted from behind by a wave, that’s the best moment to accelerate. The specific techniques are as follows:

• Sense the wave crest: Pay attention to the feeling of being pushed upward, indicating a crest is passing
• Accelerate your stroke: At the crest, quickly increase your stroke rate to use the wave’s kinetic energy to move forward
• Decelerate and glide: When you feel your body being pushed into the trough (sinking forward), slightly reduce your stroke rate to conserve energy and let the wave carry you

Techniques for Handling Broken Waves

Broken waves typically appear in the start zone (entering from shore) and the finish zone (swimming back to shore). The key to handling broken waves is speed and timing:

• When entering the water: After running to knee depth, choose a gap between two broken waves to quickly dive in and start swimming immediately. Don’t try to stumble forward with high knee lifts—that will drain enormous energy.
• When exiting the water: Once you feel your abdomen touch the bottom, stand up and run immediately rather than continuing to swim; maintain a forward-leaning posture to prevent broken waves from knocking you over from behind.

Strategies for Dealing with Chop

Chop (short-period irregular fluctuations) is the most difficult wave condition to handle, as it cannot be predicted or harnessed like swell. The best strategy for chop is:

• Lower stroke rate, increase stability: Don’t try to maintain a fast tempo; instead, focus on steady, powerful strokes
• Shorten breathing intervals: In chop, breathing position is harder to predict, so breathe every 2–3 strokes rather than your usual every 3–4 strokes
• Reduce head lift height: When sighting, you don’t need to lift your head high—just get your eyes above the water surface

Strategies for Managing Energy Expenditure

The biggest energy killer in wave swimming is often not the stroking itself, but the extra power output used to resist waves and hyperventilation caused by psychological anxiety.

Effective energy management strategies:

• Conservative start: In the start segment with larger waves, deliberately slow down by 15–20%, letting your body adapt to the wave conditions before gradually picking up speed
• Sustained breathing control: Breathe every 3 strokes, maintaining an even rhythm, and don’t skip breaths because of the waves
• Use buoyant positions: When fatigued, briefly adopt the “starfish float” position (lying on your back on the surface), letting the waves push your body while you recover your breathing
• Estimate finish time: For open-water swimming, finish times in wavy conditions are typically 15–25% slower than in a pool, so adjust your mental expectations in advance

Practical Advice

Athletes planning to compete in eastern ocean events are advised to schedule at least 3–4 open-water swimming sessions during their preparation period. The estuary near Shabodan Creek in Hualien City and Taitung’s Living Water Lake (though an artificial lake, it occasionally has chop when windy) are both good practice locations.

Additionally, record the wave condition level (calm / light waves / moderate waves / large waves) and your finish time under each condition in your training log. Such records will help you more accurately assess your pacing strategy on race day.

Conclusion

Wave swimming is the most challenging and most fascinating technical aspect of open-water swimming. When you learn to sense the rhythm of the waves and dance with them, you’ll discover that the resistance in the water is no longer an enemy, but a force you can harness. The Pacific waves off Taiwan’s east coast await your conquest—and your enjoyment.

Related Reading

• Swimming in Waves: Techniques for Harnessing Wave Power and Response Strategies
• Adapting to Waves and Currents in Sea Swimming: Key Techniques for Swimming Along Taiwan’s Coast
• Swimming Techniques in Waves: Crossing the Surf Zone and Using the Backwash
• Wave Swimming Techniques: Dancing with the Waves Instead of Fighting Them