Choppy Open Water Swim: Adaptation Session

Session Overview

Late-summer open water is rarely flat — wind chop, boat wake and tidal swell all show up on race day whether you’ve practised for them or not. This 45-minute session builds comfort and technique specifically for rough conditions, for intermediate swimmers who are comfortable in calm open water but haven’t deliberately trained for chop.

What You’ll Need

• Wetsuit (if water temperature requires it)
• Brightly coloured swim cap and tow float — non-negotiable in rough water
• A swim buddy or safety cover — do not do this session solo
• Anti-fog goggles (optional but helpful when spray keeps hitting your lenses)

Warm-Up (8 minutes)

Ease in with 5 minutes of easy freestyle in the calmest water available, focusing on a relaxed, high-elbow catch. Follow with 3 minutes of bilateral breathing (every 3 strokes) to build symmetry before you head into rougher water.

Main Set

Move into the choppiest safe water available (within your ability and any safety cover’s sightline) for the main set. Focus on shortening your sighting lifts and increasing stroke rate rather than stroke length when the chop picks up.

• 4 x 3 minutes swimming directly into the chop, sighting every 4-6 strokes, with 30 seconds rest between reps
• 4 x 3 minutes swimming with the chop behind you, focusing on catching the push from following waves without losing rhythm, 30 seconds rest
• 2 x 2 minutes swimming across the chop (waves hitting side-on), practising a slightly higher stroke rate to stay balanced, 30 seconds rest

Cool-Down (5 minutes)

Return to calmer water and swim easy, unstructured freestyle, letting your heart rate settle before you exit.

Coaching Notes

• Swallowing water is normal in chop — practise a quick cough-and-recover without stopping your stroke rhythm, rather than panicking and switching to breaststroke.
• Common mistake: over-lifting your head to sight, which drops your hips and kills your rhythm. Lift just enough to see over the wave crest, then get your face back down fast.
• Scale down: if conditions or ability don’t allow open water chop practice, replicate it in the pool by swimming in the wake of another fast swimmer or during a busy lane session.
• Target RPE 6-7/10 for the main set — this is about technique under disruption, not an all-out effort.