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Ulleung·Dokdo · Ulleungdo Jeodong

Jukdo

Jukdo

The premier dive area around Jukdo, the largest of Ulleungdo's satellite islets (about 4.8 km northeast of Jeodong Port). More than ten sites have been developed, from gentle slopes to 30–50 m walls, famed for its sea fan and black coral colonies and some of Korea's best visibility.

Intermediate levelDepth 9–50mBoat divingBest summer–autumn
01Overview

Walls and kelp beds
across a dozen sites

Around Jukdo, about 4.8 km northeast of Jeodong Port, more than ten sites such as No. 1–4 have been developed. Across varied terrain — gentle slopes (No. 1 and 4), a semi-cave and kelp beds (No. 2), coral and anemone colonies (No. 3), and 30–50 m walls — sea fan and black coral (baeksong) colonies and large migratory fish gather.

WallsSoft coralKelp bedsSemi-cave
Walls & kelp beds
02Terrain · Depth · Conditions

Jukdo by field data

Depth
9~50m
Varies by site · walls to ~50m
Visibility
20~30m
Up to 40–50m seasonally
Water temp
~21°C
June live reading · annual value pending
Current
Moderate
Strong at wall/drift sites
Best season
Summer–Autumn
Jun–Oct

※ Water temperature is a single June live reading, not a year-round representative value. Average depth and tidal influence are uncollected (data pending), and per-site depth and visibility are based on shop and café aggregation.

03Marine life

Sea fan, black coral & large migratory fish

In June–July, striped beakfish, sheepshead wrasse, red seabream and squid schools make it a fish paradise, and in August–October the Kuroshio warm current brings tropical species north.

Sea FanSea FanBlack CoralBlack CoralDamselfishDamselfishSheepshead WrasseSheepshead WrasseRockfishRockfish
04Getting there

From Seoul to the dive site

~3~3.5h
Mainland port → Ulleungdo

Ferries from Pohang, Gangneung, Donghae and Uljin.

Jeodong Port
Board at Jeodong Port

High-speed dive boat (capacity ~12).

~4.8km
Jeodong Port → Jukdo

About 4.8 km northeast offshore.

Nearest airport · data pending
05Access & permits
No permit required · No harvesting
Fishery Resources Protection Ordinance Art. 14

Illegal harvesting of marine products is prohibited in waters managed by the fishing village cooperative. A local dive guide is recommended. Inquiries — Ulleung County Office, Marine & Fisheries Division, 054-790-6288.

06Safety
Nearest chamber
To be confirmed (data pending)

Information on the nearest chamber is not yet available. In an emergency, contact 119 / the DAN hotline first.

Hazards
  • Strong current at wall sites
  • Great depth (up to about 50 m)
  • Fishing boat traffic
  • Low visibility in some seasons
RegionUlleung·DokdoNearby dive shopsUlleung·Dokdo shops
Limitations · To confirm
  • Water temperature is a single June live reading, not a year-round representative value. Average depth and tidal influence uncollected (data pending).
  • Per-site depth and visibility are based on shop/café primary and aggregated sources — reconfirm with a local guide before diving.
Always free

Korea's best visibility,
Ulleungdo Jukdo

Plan your dive at Jukdo.

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