KOEN
Gudolseo (구돌서등대) in the middle, with the lights within 20 km, in their listed colours.
Gudolseo (구돌서등대) — light characteristic, height, range
One white flash every 6 seconds
Count 6 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 6s 34m 8M
- Height
- 34 m
- Nominal range
- 8 nmi = 15 km
- Type
- Landfall / major light
- Position
- 34.6217°N, 128.1179°E · South Sea coast

Lights nearby
- Godo (고도등표)6 quick white flashes + one long every 15 seconds · 8.1 km
- Dumido Hangyeong No A (두미도 한경 A호 등부표)4 yellow flashes every 8 seconds · 11 km
- Mijo Nam Hang W Breakwater (미조 남항 서방파제 등대)One green flash every 4 seconds · 11 km
- Mijo Nam Hang E Breakwater (미조 남항 동방파제 등대)One red flash every 4 seconds · 11 km
- Dumido (두미도등대)One white flash every 6 seconds · 11 km
- Yokjido (욕지도등대)One white flash every 6 seconds · 11 km
- Yokjido (욕지도 통영시 A호 등부표)4 yellow flashes every 8 seconds · 11 km
- Baekseo (백서등대)One white flash every 6 seconds · 11 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: KHOA light list (국립해양조사원 등대표) (opens in a new tab) · Checked