Kids’ Snorkelling Fins & Flippers

Find kids’ snorkelling fins for growing feet, including Cressi Rocks, Mares Nateeva Junior and OceanPro Wategos Junior. These listings are pairs of fins, so you can choose the right size independently of a mask and snorkel.

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Product image: Cressi

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Cressi Rocks Kids’ Snorkelling Fins – Blue

Choose by foot fit

Measure both feet and use the model’s guide rather than age alone.

Mares Nateeva Junior Snorkelling Fins

Check barefoot and sock guidance

Follow the exact fin model’s footwear advice before adding socks.

OceanPro Wategos Junior Fins

Complete a child’s snorkelling kit

Choose the fins separately, then check mask and snorkel fit too.

Choose by foot fit, not age alone

Choose kids’ snorkelling fins by foot fit, not age alone. Approximate ages are a guide only; individual fit varies.

How to measure your child’s feet

Place a sheet of paper on a hard, level floor with one edge against a wall.
Have your child stand on the paper with their heel gently against the wall and their weight on the foot being measured.
Mark the end of the longest toe, then measure from the wall edge to the mark in centimetres.
Repeat for the other foot and use the longer measurement.

Use the correct Fin Size Chart

Open the selected product’s Fin Size Chart or model-specific size guide before choosing a size. Size labels and foot-pocket shapes vary between brands.

Cressi Rocks Fin Size Chart: compare the longer foot measurement with the chart’s foot-length range in centimetres.
Mares Nateeva Junior Fin Size Chart: check the junior EU shoe-size range. This model’s chart does not specify a foot-length range in centimetres.
OceanPro Wategos Junior size and fit guide: follow this model’s own size labels. If you are unsure, give our Hallam team your child’s foot length in centimetres and usual shoe size.

Try the fins before entering the water. The foot pocket should feel secure without squeezing the toes, and the heel strap should hold comfortably. The strap fine-tunes the fit within the selected size range; the foot pocket must fit too. If your child falls between sizes, ask us for fitting help.

Compare Cressi, Mares and OceanPro kids’ fins

Cressi Rocks: vented composite blades, rubber foot pockets and adjustable straps with wide thumb loops. The loops give you something to hold when putting the fins on or taking them off.
Mares Nateeva Junior: a soft foot pocket and lightweight fin with a buckle-free adjustment system. This provides a different way to adjust the heel strap from the buckled Cressi Rocks.
OceanPro Wategos Junior: a flexible blade, soft foot pocket and adjustable open heel, with tread under the sole. Blade flexibility and sole texture are useful features to compare alongside the fit.

Check barefoot and sock guidance

Check the footwear advice for the exact fin model before choosing a size. Socks take up space inside the foot pocket and can change the fit.

Cressi Rocks: designed for bare feet. Use the Rocks chart and check the fit barefoot.
Mares Nateeva Junior: follow the footwear guidance on the Nateeva Junior product page. If your child will wear fin socks, allow for their thickness and try the fins with those exact socks.
OceanPro Wategos Junior: check with our Hallam team before adding socks, as they may change which size fits. Have your child’s foot measurement and the type of sock ready.

Check comfort around the toes, top of the foot and heel with the intended footwear. An adjustable heel strap alone does not establish compatibility with neoprene boots.

Need a complete set?

Shop kids snorkel sets or junior and youth mask and snorkel sets, then check mask and fin fit separately. For more equipment, visit Kids & Junior Snorkelling Gear or browse all snorkelling fins.

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