Danyang Ondaldonggul Cave (단양 온달동굴)
23 Ondal-ro, Yeongchun-myeon, Danyang-gun, Chungcheongbuk-do
Quick answer
Danyang Ondaldonggul Cave (단양 온달동굴) is a attraction in 23 Ondal-ro,. Ondaldonggul Cave is located underground at the foot of Seongsan Mountain, where Ondalsanseong Fortress is situated. Use the address, map link, visitor details, and official links below before deciding whether it fits your Korea itinerary.
About Danyang Ondaldonggul Cave (단양 온달동굴)
Ondaldonggul Cave is located underground at the foot of Seongsan Mountain, where Ondalsanseong Fortress is situated. It is a natural limestone cave that is estimated to have begun forming around 450 million years ago. The total 760 meter-long cave covers an area of 349,485 square meters. The cave mouth is two meters high, while the cave itself is 5 to 10 meters high and about 5 meters wide. The cave features stairway structure and contains an abundance of beautiful stalagmites and stalactites. The average temperature of the cave maintains 14 degrees Celsius in summer and 16 degrees Celsius in winter, making it a perfect all-year-round attraction. The cave is rich in underground water resources and there is a 0.8 to 1 meter-deep cave river flowing at the bottom of the cave floor. The cave also has over 40 small ponds that are inhabited by a variety of living organisms like fish and insects. Situated on top of the mountain peak to the left of the cave is Ondalsanseong Fortress. The fortress has been preserved in its original form throughout some 1,400 years and shows the advanced building skills of Goguryeo Era (37 BC-668 AD). The annual Ondal Culture Festival is held every October around Ondaldonggul Cave and Ondalsanseong Fortress in memory of the legendary love story between General Ondal and Princess Pyeonggang. Other attractions in the area include a theme park and Jangseung (Korean traditional totem poles) Park.
- Type
- Attraction
- Address
- 23 Ondal-ro, Yeongchun-myeon, Danyang-gun, Chungcheongbuk-do
- Postal code
- 27020
- Phone
- +82-43-423-8820
- Opening hours
- Summer Season: 09:00-18:00 / Winter Season: 09:00-17:00 * Last admission is one hour before closing.
- Fees
- Confirm before visiting
- Parking
- Available
- Updated
- 2025-12-15
- Data last synced
- 2026-06-25
Best for
- First-time visitors comparing Korea places by area.
- Travelers who need official address and map context.
- Visitors building a day route with nearby attractions.
Visitor tips
- 1
Check current opening hours, tickets, reservations, and holiday notices before visiting Danyang Ondaldonggul Cave (단양 온달동굴).
- 2
Save the Korean address and nearest station or landmark before leaving your hotel.
- 3
Prepare a taxi destination card if you are arriving late, carrying luggage, or traveling with family.
Directions and official information
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Danyang Ondaldonggul Cave (단양 온달동굴) FAQ
Where is Danyang Ondaldonggul Cave (단양 온달동굴) located?
23 Ondal-ro, Yeongchun-myeon, Danyang-gun, Chungcheongbuk-do
How can I check current opening information?
Use the official tourism or place website before visiting because operating information can change.
How do I find nearby places?
Return to the Korea travel list to explore more official attractions and destinations.
Can I rely on this page as official information?
No. Use ComeKR as practical travel guidance and confirm opening hours, prices, reservations, transport details, and notices with official or provider sources before visiting.