KOEN
Gudo (구도등대) in the middle, with the lights within 20 km, in their listed colours.
Gudo (구도등대) — light characteristic, height, range
One white flash every 5 seconds
Count 5 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 5s 15m 8M
- Height
- 15 m
- Nominal range
- 8 nmi = 15 km
- Type
- Landfall / major light
- Position
- 34.7861°N, 128.5314°E · South Sea coast

Lights nearby
- Silli Hang (실리항 삼우 B호 등부표)4 yellow flashes every 8 seconds · 2.5 km
- Silli Hang (실리항 삼우 A호 등부표)4 yellow flashes every 8 seconds · 2.5 km
- Hansan Bridge (한산 추봉 연도교 교량등)Steady green light · 2.9 km
- Hansan Bridge (한산 추봉 연도교 교량등)Steady red light · 2.9 km
- Hansan Bridge (한산 추봉 연도교 교량등)Steady green light · 2.9 km
- Hansan Bridge (한산 추봉 연도교 교량등)Steady white light · 2.9 km
- Hansan Bridge (한산 추봉 연도교 교량등)Steady red light · 2.9 km
- Hansan Bridge (한산 추봉 연도교 교량등)Steady white light · 2.9 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