| No | Locality | Date | Latitude (N) | Longitude (E) | Depth | Method |
|---|---|---|---|---|---|---|
| Ⅰ | R/V Saedongbaek cruise st. 4 | 2022-08-17 | 33°54′55″ | 127°22′46″ | 79 m | Smith-McIntyre Grab |
| II | Sungsan Seom-yeo diving point, Jeju | 2020-08-02 | 33°27′21.54″ | 126°56′3.06″ | 18.3 m | SCUBA diving |
| III | Seop-seom, Kaldong-gul diving point, Jeju | 2020-08-03 | 33°14′12.10″ | 126°35′19.34″ | 23.1 m | SCUBA diving |