We were standing on the windswept expanse of a Cornwall beach, holding two four-month-old twins who were dressed entirely in matching hand-knitted merino wool cardigans. My wife had envisioned a deeply aesthetic Instagram moment featuring the moody British coastline and our beautifully swaddled offspring, but the reality was that a sudden gust of wind had just coated both screaming infants in a fine layer of wet sand that immediately bonded to the wool fibers like concrete. As I desperately tried to brush the abrasive grit off Twin A’s chin while Twin B attempted to inhale a rogue piece of seaweed, it dawned on me that bringing an infant to the seaside is essentially a hostile environment survival mission that requires highly specialized gear.

Before having children, I assumed you just stripped a baby down to a nappy, plopped a cute little bucket hat on their head, and let them experience the sensory joy of the ocean. This, as it turns out, is a spectacular way to end up in A&E with a severely sunburned and hypothermic child.

The entire concept of dressing a tiny human for the beach fundamentally changed for me when our GP cheerfully informed us that putting sunscreen on babies under six months old is a massive medical no-go. She muttered something terrifying about their paper-thin skin being incredibly permeable and absorbing all the chemical filters straight into their tiny bloodstreams, leaving us with the stark realization that our only defense against the giant radiation orb in the sky was physical barriers.

The absolute tyranny of wet swimwear

Because you can't baste a newborn in Factor 50, you've to put them in UPF 50+ sunsuits, which sound highly advanced but are essentially full-body spandex prisons that block 98 percent of UV rays. Buying one of these suits is easy enough, but nobody warns you about the physical and emotional trauma of trying to remove one after it has been exposed to seawater.

I'm going to speak to you very seriously for a moment about zippers. When you're standing on a beach towel, holding a shivering, wet, sandy, enraged infant who has just realized they're hungry, you've about fourteen seconds to get them out of their wet clothes before a full-scale meltdown commences. If you've purchased a sunsuit that only unzips halfway down the chest, you're doomed. The wet synthetic fabric suctions onto their fleshy little arms with the grip of a vice, requiring you to essentially dislocate their shoulders to peel it off them while they shriek loudly enough to concern nearby holidaymakers.

You need a sunsuit with a zipper that goes all the way down to the ankle, or better yet, a two-way zipper that allows you to access the swim nappy without entirely denuding the child. And speaking of swim nappies, I once let Twin B crawl into the shallow surf wearing a standard disposable nappy, only to watch in horror as it immediately absorbed what felt like half the English Channel, swelling to the size of a watermelon and dragging her backward into the tide pool under its immense weight.

What happens under the beach tent

Once you've successfully wrestled the wet neoprene off your screaming child, you'll encounter the next problem, which is that they're suddenly freezing cold but the air around them inside the pop-up beach tent is roughly the temperature of a greenhouse. You need something for them to wear while they nap in the shade that covers their skin from reflected UV rays but doesn't cause them to slowly boil.

What happens under the beach tent — Surviving the Sand: The Truth About Newborn Beach Clothes

On our second, slightly more successful beach trip to Dorset, I dressed Twin A in a polyester t-shirt and Twin B in Kianao's Long Sleeve Organic Cotton Baby Bodysuit. Within twenty minutes under the canvas, Twin A had developed an angry, prickly heat rash that looked suspiciously like a map of the London Underground, while Twin B slept peacefully in her breathable organic layers. I genuinely love these bodysuits because the fabric is incredibly soft and completely undyed, which somehow seems to prevent that awful clammy feeling babies get when they fall asleep in a hot environment, plus the envelope shoulders meant I could peel it downwards when Twin B inevitably had an explosive bowel movement that completely bypassed the swim nappy.

We also brought along the Kianao Large Baby Play Mat Waterproof & Vegan Leather Playmat to serve as our base camp inside the tent, though I've to be completely honest and say that vegan leather gets quite sweaty if you leave it in direct sunlight on hot sand. It's also fairly heavy to lug across the dunes when you're already carrying a double buggy, an umbrella, and a bag full of emergency Calpol. However, once we threw a cotton towel over the top of it, the mat provided an absolutely impenetrable waterproof barrier between the damp sand and the babies, which proved invaluable when I had to change a nappy without accidentally breadcrumbing a wet infant in crushed shells.

If you're currently staring at a mountain of synthetic, brightly colored summer wear and feeling a rising sense of panic about your upcoming holiday, it might be worth browsing the Kianao baby clothing collections to find a few breathable pieces that won't turn your child into a sweaty, irritable mess.

The great hat rebellion of summer

There's a persistent myth perpetuated by baby clothing catalogs that an infant will happily wear a stylish straw boater or a jaunty little baseball cap at the beach. In reality, a baby's primary occupation is locating whatever item you've placed on their head and aggressively throwing it into the nearest puddle.

Baseball caps are entirely useless anyway because they leave the neck and ears completely exposed to the sun, which our health visitor warned us are the exact spots that burn the fastest because of some complicated angle-of-the-sun physics I stopped listening to. You absolutely must buy a legionnaire-style hat—the deeply uncool ones with the massive flap down the back that make your child look like a tiny French Foreign Legionnaire. More importantly, it must have a chin strap that you can tie firmly enough to withstand tiny, determined fists pulling at it for three straight hours.

We also tried wrap-around sunglasses, which supposedly protect their under-developed eye lenses from UV radiation, but both girls just violently rubbed their faces against the sand until the glasses fell off, leaving them looking like tiny hungover celebrities who had slept in a hedge.

The post-sea freezing panic

Babies are terrible at regulating their own body temperature, probably because their hypothalamus or whatever internal thermostat they've is completely underdeveloped, meaning they basically take on the temperature of their surroundings like fleshy little lizards. The moment you take them out of the warm sun and strip off the wet swimwear, their body temperature plummets.

The post-sea freezing panic — Surviving the Sand: The Truth About Newborn Beach Clothes

You need something thick, soft, and completely enclosing to put them in immediately after you've brutally towel-dried them. Trying to thread tiny, sandy, wet toes into individual socks while sitting on a windy beach is a punishment I wouldn't wish on my worst enemy, which is why we started packing the Baby Romper Organic Cotton Footed Jumpsuit Front Pockets for the end of the day. The built-in feet mean you entirely bypass the sock drama, and the organic cotton acts like a highly efficient sponge, wicking away any residual moisture you missed with the towel while warming them up fast enough to stop the lip-quivering.

Desperate measures and cornstarch

At some point, you'll need to remove wet sand from your baby's skin without sandpapering off their epidermis, and the only reliable way to do this is to rub their sandy limbs vigorously with a handful of cheap cornstarch from the baking aisle, which magically absorbs the moisture and lets the sand brush right off.

Don't even attempt to bring your children to the shoreline between 11 AM and 3 PM unless you've a deep desire to stress about UV indexes while desperately trying to keep a parasol from blowing away in the sea breeze.

You ultimately just have to accept that dragging babies to the ocean involves an absurd amount of logistical planning, packing three times more clothing than you think you need, and surrendering to the fact that you'll be finding sand in the crevices of your car seat for the next six to eight business months. If you want to at least make sure their skin survives the ordeal without angry rashes, make sure to stock up on proper, breathable organic base layers and abandon any hope of looking stylish before you pack the car.

Questions I frantically googled from a beach towel

Do I really have to buy special swimwear for a newborn?
Unfortunately, yes, unless you want to spend the entire day in a constant state of anxiety. A normal cotton t-shirt basically turns invisible to UV rays the second it gets wet, offering almost zero protection. Because you can't smother a newborn in sunscreen, an ugly, long-sleeved UPF 50+ sunsuit is the only thing standing between your baby's highly sensitive skin and a terrifying sunburn.

Why can't I just use organic or natural sunscreen?
Our GP was incredibly blunt about this when I asked. It doesn't matter if the sunscreen is made of organic crushed pearls and fairy dust; a baby's skin under six months is so thin that it absorbs everything systemically. Their little bodies can't process the ingredients yet, so the official medical advice is just to keep them out of direct sunlight and cover them in UPF fabric entirely.

What should they wear when sitting in the shade?
Take off the wet sunsuit immediately, because evaporation will make them freeze, and put them in something made of 100% breathable natural fibers. I usually opt for a long-sleeve organic cotton bodysuit because it covers their arms from any reflected glare bouncing off the sand, but it actually lets the heat escape so they don't wake up from their nap drenched in sweat.

Do swim nappies actually hold the wee in?
Absolutely not. Swim nappies are entirely porous to liquids, meaning they'll absolutely leak urine all over you if you hold the baby on your lap. Their sole function in this world is to act as a highly secure vault for solid waste so your child doesn't accidentally shut down a public beach. Put the swim nappy on at the absolute last minute before they hit the sand.

How do I get the wet sand out of all their little skin folds?
Don't try to wipe it off with a baby wipe, because it acts exactly like wet sandpaper and they'll scream. You have to wait until they're reasonably dry, then heavily powder the area with cornstarch (or talc-free baby powder). The powder soaks up the remaining water clinging to the sand, and it literally just dusts right off with a dry towel. It’s the closest thing to actual magic I've experienced in parenting.