KOEN
Jwasarido (좌사리도등대) in the middle, with the lights within 20 km, in their listed colours.
Jwasarido (좌사리도등대) — light characteristic, height, range
One white flash every 4 seconds
Count 4 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 4s 58m 10M
- Height
- 58 m
- Nominal range
- 10 nmi = 19 km
- Type
- Landfall / major light
- Position
- 34.5573°N, 128.3422°E · South Sea coast

Lights nearby
- Jwasarido Weather Tower (좌사리도 통영미래 기상탑등)Morse U (··−) in white every 10 seconds · 3.7 km
- Oejangdeogam (외장덕암등표)2 white flashes every 5 seconds · 4.1 km
- Gukdo Hang (국도항 대명 A호 등부표)4 yellow flashes every 8 seconds · 9.1 km
- Gukdo Hang (국도항 대명 B호 등부표)4 yellow flashes every 8 seconds · 9.1 km
- Heukcho (흑초등표)2 white flashes every 5 seconds · 9.3 km
- Gukdo (국도등대)One white flash every 5 seconds · 9.4 km
- Yokjido (욕지도 통영시 D호 등부표)4 yellow flashes every 8 seconds · 9.7 km
- Yokji Hang E Breakwater (욕지항 동방파제 등대)One green flash every 4 seconds · 10 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