| Qid: | Q33127710 |
| Location: | Yongdae Gap South Hamgyong Province North Korea |
| Coordinates: | 40.4736°N 129.0623°W |
| Shape: | cylindrical tower with balcony and lantern |
| Marking: | white tower |
| Focalheight: | 61m (200feet) |
| Range: | 12nmi |
| Characteristic: | L Fl W 9s. |
Yongdae Gap (Korean: {{linktext|용대|갑, Chinese: {{linktext|龍台|岬, "Dragon-Terrace Cape") is a North Korean headland in the middle of the country's eastern coast along the Sea of Japan. It forms the southeastern corner of South Hamgyong's Tanchon and the western point of a narrow bay sheltering Songjin and Hwadae.
In the 19th century, Yongdae Gap was known as or Schlippenback. During the Japanese occupation of Korea, it was known as .
Yongdae Gap is the southern point of a small peninsula whose most conspicuous summit is which rises to an elevation of 504m (1,654feet) about 4miles due north of the cape. The highest visible mountain from the point is which rises to an elevation of 1598m (5,243feet) about 17miles farther NNW. Its range extends 25miles north from the cape.
A half-mile to the west of the peninsula is ("Yongdae Anchorage"). This has a depth of 9.1m-13mm (29.9feet-43feetm) and bottom in fine sand, but is unsafe except as a shelter from NE winds.
To the east of Yongdae Gap is a narrow but long and deep bay[1] extending about 40miles east to Musu Point.
Yongdae Gap has a lighthouse, but it is closed to the public and the American National Geospatial-Intelligence Agency notes that "the existence and operation of all navigational aids should be considered unreliable on the east coast of North Korea".