DCT Family Guide

It was Friday evening in mid-June when my husband suddenly asked, “Want to head to Jeju this weekend?” Last-minute trips are kind of our family thing, so the moment Laurent shouted “Ocean!” I started throwing things in a suitcase. The problem? I forgot a few crucial things. Jeju’s summer sun is nothing like Seoul’s—it’s seriously intense, and if you’re not prepared, both kids and adults pay the price.

After three summer trips to Jeju with my 5-year-old, I’ve narrowed it down to five absolute essentials. Pack these, and you’ll cut down on luggage and avoid those panicked moments at the beach.

Three Extra Outfits — For Water, Sweat, and Food Spills

On our first Jeju trip, I thought one outfit per day would be enough. Wrong. Laurent spilled orange juice at breakfast, and by afternoon he’d waded fully clothed into the ocean because—let’s be honest—the water is so clear and inviting that kids just can’t resist.

Travel experts recommend packing two to three extra outfits per day to handle unexpected spills, sweat, and water mishaps without stress. Now I bring three short-sleeve shirts, two pairs of shorts, and four sets of underwear. Laundry dries fast at the accommodation, so you can rewear things within a day.

Zip bags in the suitcase make it easy to separate wet clothes on the go.

Also pack one lightweight long-sleeve shirt. Indoor air conditioning in Jeju can be aggressive—what feels refreshingly cool to adults can make kids shiver. Laurent’s asked for his hoodie every time we’ve stepped into a cafe, so now I always keep a thin long-sleeve layer in my day bag. It’s saved us more than once.

High-SPF Kids’ Sunscreen (SPF50+) — Jeju Sun Is Serious

Jeju’s summer sun is no joke. The UV intensity in Jeju is far stronger than in city areas, and without protection, your child’s face and arms will burn in hours. On our first trip, Laurent spent just two hours at the beach in the morning, and his cheeks were bright red. By evening, his skin was actually peeling.

Now I apply SPF50+ PA++++ mineral sunscreen every two hours. Since water washes it away quickly, grab a water-resistant formula. We use Thinksport Kids Sunscreen SPF50+—mineral-based, gentle on his skin, and he doesn’t complain about how it feels.

Beyond sunscreen, hats and lightweight clothing provide an extra layer of UV protection. Laurent wears a wide-brimmed bucket hat made from quick-dry polyester. A rash guard is essential too—one long-sleeved rashguard means his arms stay protected, and he can play in the water without worry.

Water-Play Essentials — Swimsuit, Float, and Multiple Towels

Water play is the whole point of a Jeju trip. Jeju’s natural rock pools and coves offer some of the clearest, calmest waters perfect for families—and kids absolutely lose their minds over them. On our second visit, we spent an entire day at a natural tidal pool near Jungmun Beach. I wish I’d been better prepared.

A swimsuit and rashguard are basic, but a child’s float vest is non-negotiable. Always check that the float is fully inflated before water play, and teach kids to call out immediately if they feel air leaking. We use a vest-style float instead of arm floaties—Laurent can move freely in the water, and I have peace of mind. (I’ve got a whole water safety guide for 5-year-olds here.)

Vest floats are adjustable and give kids way more freedom than arm floaties.

Pack at least three towels. Kids often get wet and tired simultaneously, so having extra towels prevents the scramble. Laurent needs a towel wrap after water play before he’ll change out of his wet swimsuit—it makes him feel secure. Two large beach towels and one small hand towel is our sweet spot. Microfiber dries fastest if you can find it.

Travel First-Aid Kit — Fever Reducer, Bandages, and Bug Bite Relief

When your kid gets sick at the beach, panic sets in fast. On our first Jeju trip, Laurent suddenly ran a fever. We spent an hour at 10 p.m. hunting for a pharmacy. Jeju’s pharmacies aren’t as densely packed as Seoul’s, so I learned to pack ahead.

A solid travel first-aid kit includes fever-reducer meds, digestive aids, waterproof bandages, bug-bite relief, and a thermometer. I keep everything in a small pouch tucked in my day bag. I bring both liquid and suppository fever meds, and waterproof bandages are essential. Laurent scraped his knee badly on a rocky path once, and waterproof bandages meant we never broke our beach streak.

Bug-bite relief is a must-have. Summer in Jeju means mosquitoes, especially around gardens and mountain hiking trails. We use AfterBite Kids Bug Bite Patches. They’re ammonia-free, so completely safe for a 5-year-old, and they actually work.

Snacks and Water — Stock Your Car

Jeju’s bigger than it looks on a map. Driving from the north coast to the south takes about 90 minutes. When Laurent says “I’m hungry,” you need immediate options.

Stocking up on snacks and water in your rental car is the smartest move. We keep a snack bin in the trunk with organic crackers, dried fruit, cheese sticks, and three 2-liter bottles of water. Jeju’s convenience stores are scattered and few between, so having a stash in the car is a total game-changer.

Pre-portion snacks in zip bags for easy grabbing.

Go for 2-liter bottles instead of individual bottles—they’re way more economical. Fill them at your accommodation each morning and you’re set for the whole day. Laurent’s go-to snacks are Babybel Cheese and organic rice cakes. The cheese is individually wrapped (so no mess), and rice cakes dissolve without leaving crumbs all over the car.

Next Time: We’re Bringing an Umbrella

Jeju summers (June through August) average 79–84°F, and this season brings frequent downpours, so rain gear is essential. On our June trip, we got caught in a sudden squall with no umbrella and ended up camping out in a cafe for over an hour. Laurent kept asking, “Is the rain stopping?” I felt terrible.

Next time, I’m packing a compact umbrella and a kids’ rain jacket. Jeju’s weather can shift without warning—clear skies in the morning can turn into afternoon showers. (I broke down Jeju’s seasonal weather patterns here.) Being prepared means you can roll with it and keep your plans intact.

If you’re planning a Jeju trip with a young child, drop a comment with your questions. I’m happy to share accommodation recommendations and kid-friendly restaurant tips.

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