Ulleungdo Island

Remote volcanic island with steep cliffs and fisheries

Ulleungdo is a steep volcanic island east of the Korean Peninsula with coastal cliffs, submarine terraces and seafood-raw squid and sea urchin feature prominently; visitors hike coastal trails and sample local catches.

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Ulleungdo at a Glance#

Address: Ulleungdo (Ulleung County), North Gyeongsang Province, South Korea

Admission: No formal admission (ferry/tour costs apply to reach the island)

About Ulleungdo#

Ulleungdo is a volcanic island in the East Sea administered as part of North Gyeongsang Province, South Korea, notable for steep sea cliffs and forested interior. The island covers roughly 73 square kilometres and its highest point is Seonginbong at 984 metres.

Steep coastal cliffs, rocky bays and a compact network of hiking trails are the main attractions. Expect marked routes to the summit, coastal roads with lookout points and short boat excursions to nearby islets such as Jukdo; the island’s main settlement and ferry hub is Dodong.

The island is volcanic in origin and was formed by repeated eruptions creating a central peak and surrounding cliffs. Over centuries it has been used for fishing and small-scale agriculture and is now settled year-round with modern harbour facilities.

Ulleungdo sits in the East Sea about 120 kilometres east of the Korean mainland. The island is isolated by open water and rises sharply from the sea, giving it a compact, mountainous profile surrounded by several small offshore islets.

  • Size and summit: The island covers roughly 73 square kilometres and its highest summit, Seonginbong, reaches 984 metres.
  • Access: Access is by scheduled passenger boats and ferries from the mainland; the main arrival point on the island is Dodong Port.

What to See#

  • Dodong Port: The main harbour and settlement on the island, serving as the arrival point for ferries and the base for most services, shops and accommodation.
  • Seonginbong (984 m): The island’s highest point at 984 metres, reached by marked trails that offer panoramic views over the island’s cliffs and the surrounding sea.
  • Jukdo (islet): A small offshore islet just off the northeast coast, known for seabird colonies and short boat excursions from the main island.
  • Nari Basin: A low-lying agricultural basin on the west side of the island characterised by terraced fields and a distinctive concave landscape.

How to Get to Ulleungdo#

Ulleungdo is an island in the East Sea (Sea of Japan) reached by passenger ferry from mainland Korean ports. Regular ferry services operate from ports such as Pohang and Mukho (Donghae) - crossings are weather-dependent and timetables vary seasonally, so check operators for current schedules. Ferries arrive at Ulleungdo’s main port (Dodong), which is a short walk into the island’s main village and lodging areas.

Tips for Visiting Ulleungdo#

  • Ferries to Ulleungdo arrive at Dodong Port; popular departure points include Pohang and Mukho (Donghae), and sailings are seasonal - book your ferry tickets and on‑island transport in advance during summer.
  • Start hikes early (pre‑morning) to get the best mountain‑top views from Seonginbong and to avoid late‑afternoon sea fog and returning ferry crowds; also sample the seafood stalls around Dodong, which many day‑visitors miss.

Best Time to Visit Ulleungdo#

Spring and autumn are the best times to visit Ulleungdo for comfortable weather, clear views and good hiking conditions.

Spring
April-June · 10-20°C
Mild, pleasant weather and blooming vegetation - one of the best times for hiking and sightseeing on the island.
Summer
July-August · 20-25°C
Warm but humid with the rainy season and occasional typhoon influence - good for beach activities when conditions are calm but expect more rain.
Autumn
September-November · 10-20°C
Clearer, cooler weather with lower humidity and excellent visibility - a top season for hiking and viewing coastal scenery.

Weather & Climate near Ulleungdo#

Climate

Ulleungdo's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -4°C to 25°C. Abundant rainfall (1344 mm/year), wettest in August.

Air Quality: AQI 58 Moderate
Best Time to Visit
AugustJulyOctober
Temperature & Rainfall
Temperature Range
30°
Warmest Month
-6°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -5° - 2° -7° 111 mm overcast 72% 5.7 m/s 0.2 low 9.8h
February Poor -4° - 2° -6° 84 mm overcast 70% 4.5 m/s 0.4 low 10.7h
March Poor -1° - 7° -1° 77 mm overcast 70% 4.7 m/s 0.7 moderate 11.8h
April Acceptable 5° - 13° 7° 83 mm partly cloudy 76% 3.7 m/s 1.1 high 13.0h
May Good 10° - 18° 14° 91 mm overcast 84% 3.7 m/s 1.4 high 14.0h
June Good 14° - 20° 17° 119 mm overcast 87% 3.3 m/s 1.5 very high 14.5h
July Good 18° - 24° 21° 155 mm overcast 90% 3.0 m/s 1.6 very high 14.3h
August Very Good 19° - 25° 22° 170 mm partly cloudy 85% 3.1 m/s 1.6 very high 13.4h
September Good 15° - 21° 18° 163 mm partly cloudy 77% 3.6 m/s 1.2 high 12.3h
October Good 9° - 16° 13° 92 mm partly cloudy 69% 5.1 m/s 0.8 moderate 11.1h
November Acceptable 3° - 11° 4° 99 mm partly cloudy 69% 4.8 m/s 0.4 low 10.0h
December Poor -2° - 5° -3° 100 mm overcast 73% 5.6 m/s 0.2 low 9.5h

Nearby Attractions to Ulleungdo#