Ulleungdo Island, Korea

1. The Nari basin is a caldera created when Ulleungdo volcanic activity is active.

2. This boat, which has a maximum speed of 10 knots, took about 10 hours to connect Pohang and Ulleungdo.

3. Geobukbawi

4. It is a rock located in the 3rd floor of Namyang-ri, Seo-myeon of Ulleung-gun, Gyeongbuk province.

5. Geobukbawi

6. tonggumi beach

7. Rainbow Bridge

8. The island consists primarily of trachyandesite rock.