Gangdong restaurants: 6 spots, every one of them seafood

Gangdong

Gangdong is the one district on Seoul Dangol where a single category takes every listing — all 6 are seafood, mostly built around a single signature dish apiece. Cheonho-dong carries 4 of the 6, with Seongnae-dong holding the other 2.

Five to start with

Ihanjin Sukseonghoe Cheonho-dong · 숙성회 · ₩15–40k — A single-menu specialist built around one dish: patented sukseonghoe, thick-cut dry-aged flounder sashimi, served with a spicy maeuntang finish in Cheonho-dong, Gangdong-gu.

Cheonho-dong's Ihanjin Sukseonghoe is built around one patented dish, thick-cut dry-aged flounder sashimi, finished with a spicy maeuntang. Nearby Gyejeol Sikdang serves agwi suyuk (steamed monkfish with bean sprouts) and byeongeo jorim alongside skate bibimbap and oyster bossam at old-school prices, and Ojingeo Chamchi is a budget hoe restaurant known for a large mixed-sashimi platter and seasonal yellowtail well below typical hoe prices.

Seongnae-dong's Segosi has served nothing but flounder segosi — thinly sliced hoe with a distinctive chewy texture — since 1999, while Wonjo Seongnae Boldegijip, permitted in 1986, specializes in cod cheek dishes: spicy or clear stew, steamed, or hot pot.

6 spots below, ranked · updated 2026-07-22

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Ihanjin Sukseonghoe 이한진숙성회
Cheonho-dong · Sukseonghoe (aged sashimi)
A single-menu specialist built around one dish: patented sukseonghoe, thick-cut dry-aged flounder sashimi, served with a spicy maeuntang finish in Cheonho-dong, Gangdong-gu.
₩15–40k1 trusted mentionExpect lines
▶ source video
Gyejeol Sikdang 계절식당
Cheonho-dong · Boiled Monkfish & Seasonal Seafood
A neighborhood seafood tavern in Cheonho-dong built around agwi suyuk (steamed monkfish with bean sprouts) and byeongeo jorim (braised pomfret), served alongside skate bibimbap, grilled sea bream, and oyster bossam at old-school prices.
₩15–40k1 trusted mentionShort waits at peak
▶ source video
Segosi 세꼬시
Seongnae-dong · Gwang-eo Sekkoshi (flounder sashimi)
A single-menu raw fish spot in Seongnae-dong, Gangdong-gu, serving only flounder segosi (thinly sliced hoe with a distinctive chewy texture) since 1999.
₩15–40k1 trusted mentionShort waits at peak
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Wonjo Seongnae Boldegijip 원조 성내볼데기집
Seongnae-dong · Daegu Ppolzzim & Codfish Stew
A 1986-permitted, old-school Seongnae-dong shop specializing in cod cheek (ppolddegi) dishes — spicy or clear cod cheek stew, steamed cod cheek, and cod cheek hot pot.
under ₩15k1 trusted mentionShort waits at peak
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Ojingeo Chamchi 오징어참치
Cheonho-dong · Hoe (raw fish sashimi)
A budget raw-fish (hoe) restaurant near Cheonho Station in Gangdong-gu, known for a large mixed-sashimi platter and seasonal yellowtail (daebang-eo) at prices well below typical hoe restaurants.
under ₩15k1 trusted mentionExpect lines
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Taeyangsusan 태양수산
Cheonho-dong · Hoe (aged & assorted sashimi)
A budget-friendly sashimi (hoe) spot near Amsa Station in Gangdong-gu, known for aged sashimi (sukseonghoe) and assorted sashimi platters served with a steady stream of drinking side dishes (anju).
₩15–40k1 trusted mentionShort waits at peak