Segial Beach (세기알해변) is a small beach in Gimnyeong on Jeju’s northeast coast, right next to the larger Gimnyeong Beach. The water is shallow and clear a long way out, which is why we stopped there with our two kids on a Monday afternoon in July 2026. This is what we found at Segial Beach Jeju: the water, the crabs, the parasols, the beach delivery, and the one thing we would plan differently.
- Name: Gimnyeong Segial Beach (김녕 세기알해변)
- Address: 1200-5 Gimnyeong-ri, Gujwa-eup, Jeju-si (Naver Map)
- Visited: Monday, July 2026, mid-afternoon
- Admission: free
- Age fit: good for our two elementary-school kids; the shallow water suits younger children too
- Facilities: parasol rows on the sand, a basic restroom, parking nearby; we could not find anywhere to rinse off
- Info checked: September 2026
Why Segial Beach works for kids
The water is the reason to come. It stays shallow a long way from the shore, so the kids could wade out and still stand with the water around their knees or waist. On our day the sky was cloudy, but the water was still clear enough to see our feet and the pale sand underneath. The swimming area felt more like a big natural paddling pool than open sea, which made it easy to relax while the kids played.
Behind the sand there is a row of palm trees and a line of buildings, and a long stretch of white parasols set up in rows along the beach. It was busy but never cramped. The drama Welcome to Samdalri was filmed here, according to a local travel guide, but the kids cared much more about the water than any of that.
Crabs in the shallows
The best part of the afternoon for our kids was catching crabs. Small crabs move around in the shallow water near the shore, and the kids spent a long time trying to catch them with their hands. It was the kind of play that needs no toys or rentals at all. If you go, a small bucket or net would make it even better.
When they were not in the water, they were digging in the sand. Our daughter and son sat side by side digging holes in the sand, which leads to the one problem we had.
The downside: nowhere to rinse
We could not find a place to wash the sand off before leaving. A Korean travel guide for the beach lists a basic restroom but no shower facilities, which matches what we saw. With two sandy kids, we brushed off what we could and got into the car anyway, and the sand came with us. Next time we would bring a couple of large water bottles or a portable shower in the car and rinse feet and legs before getting in.
Food delivery to the beach
One thing worth knowing: food delivery works at Segial Beach, so you can order chicken or pizza to the sand the same way you would to a house. We did not order that day, but it is a handy option if you plan to stay through a meal and do not want to pack everything up to find food.
How it fit our Jeju day
We came to Segial in the middle of the afternoon after a galchi lunch at Jeju Gwanghae in Aewol, and left in time to check in to our thatched-roof house in Seongeup Folk Village around 6 p.m. It worked well as a stop on the drive east. If you have a whole day, the beach could easily hold you longer than it held us.
More about Segial Beach
Segial Beach sits in Gimnyeong-ri, next to the better-known Gimnyeong Beach, and a Korean travel guide describes it as a quieter alternative to the busier beaches nearby. The same guide mentions snorkeling off the beach, people jumping from the breakwater, and a red lighthouse and wind turbines along the coast that make good photo backdrops. We did not snorkel, since our kids were happy in the shallows, but the clear water would suit it.
Because the beach is on the northeast coast, it pairs well with other stops on that side of the island. We came from Aewol in the west after lunch and continued east to Seongeup for the night, so it also works as a break on a long cross-island drive.
Korean words that help at the beach
- 해변 / 해수욕장 (haebyeon / haesuyokjang): beach / swimming beach
- 파라솔 (parasol): beach umbrella
- 샤워장 (syawojang): shower room
- 화장실 (hwajangsil): restroom
- 게 (ge): crab
- 배달 (baedal): delivery
Questions parents ask
Is there a shower at Segial Beach?
We could not find one, and a Korean guide to the beach lists no shower facilities. Bring water to rinse off.
Is Segial Beach good for small children?
The water stays shallow a long way out and was calm on our visit, so it suits young swimmers with an adult close by.
Tips for Segial Beach Jeju with kids
- Bring rinse water: we did not find a shower, and a guide lists none.
- Pack a bucket: the crabs in the shallows are the main entertainment.
- Plan for sun: parasols are set up in rows along the sand if you want shade.
- Food can come to you: chicken and pizza delivery reaches the beach.
- Keep kids in sight: the water is calm and shallow, but it is still the sea.
Would we go back?
Yes. Of the beaches on our Jeju trip, this was the easiest one for the kids: shallow, clear, calm, and with crabs to chase. The only thing we would change is bringing our own water to rinse off. For more beaches with kids, our Jangho Beach post covers a clear-water beach on the mainland east coast.
For where we ate on this Jeju trip, see our Jeju family food guide on Korea Food Trails, our sister site for restaurant reviews.