Age-by-Age Swim Milestones Checklist

Child's name: ______________________ · Started tracking: ____________

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Check a box only after you see the skill three separate times. Write the date next to it. Re-check after any long break from the water — skill fade in young children is normal. ⭐ = survival anchor: close these gaps first.

Babies 6–18 months Comfort & acclimation

Enters the water calmly in a parent's arms date: ________
Tolerates water poured gently over head and face date: ________
Splashes, reaches, and kicks while supported date: ________
Relaxes in a supported back float (head on parent's shoulder or hands) date: ________
Closes mouth / holds breath briefly on cue ("1-2-3, under!") date: ________

Toddlers 18 months–3 years Foundations

Blows bubbles with mouth and nose in the water on cue date: ________
Kicks with support and actually moves through the water date: ________
Holds an assisted back float without arching or panic date: ________
Climbs out at the wall: elbow–elbow–tummy–knee date: ________
Submerges face voluntarily (no tears, no wiping) date: ________
In lessons: first assisted roll from front to back date: ________

Preschoolers 3–5 years Independence begins

Independent back float, 10+ seconds ⭐ survival anchor date: ________
Rolls from front to back to breathe, unassisted ⭐ survival anchor date: ________
Swim–float–swim across a short gap (5–10 ft) date: ________
Fully submerges and retrieves an object in shallow water date: ________
Jumps in, surfaces, and turns back to the wall date: ________
Front glide with face in the water, 5+ feet date: ________

Early graders 5–8 years Real swimming

Treads water 30–60 seconds date: ________
Front crawl with rhythmic side breathing, 10–15 yards date: ________
Backstroke or elementary backstroke, 10+ yards date: ________
Safe feet-first entry into deep water; surfaces and orients date: ________
Full water-competency sequence: fall in over the head → surface → float or tread 1 min → orient to exit → swim 25 yards → climb out date: ________

Big kids 8–12 years Endurance & judgment

All four strokes in recognizable form (free, back, breast, fly) date: ________
Swims 25–50+ yards continuously without stopping date: ________
Reads depth markers and follows posted rules without prompting date: ________
Knows open-water basics: currents, cold water, swim near a lifeguard date: ________
Knows reach-or-throw rescue — never jump in after a struggling swimmer date: ________

Read Me Before Comparing Kids

Water hours beat birthdays. A 7-year-old with no lessons will sit in the preschool band — that's an exposure gap, not a developmental problem. It closes fast with consistent lessons.
Regression is normal. Skills fade over a winter away from the pool. Re-check old boxes each season before assuming they still hold.
The ⭐ anchors come first. Back float + roll-to-breathe buy time in an emergency. If they're unchecked, they are the priority — strokes can wait.
No milestone replaces supervision. Checked boxes add a layer of protection — they never subtract an adult watching the water.