KOEN
Yttergrund in the middle, with the lights within 20 km, in their listed colours.
Yttergrund — light characteristic, height, range
3 long white flashes every 30 seconds
Count 30 seconds.Flash white, long, 3 times.Begin again.
- Characteristic
- LFl (3) W 30s
- Height
- 44 m
- Nominal range
- 16.5 nmi = 31 km
- Type
- Merimajakka
- Position
- 61.9794°N, 21.2946°E

Lights nearby
- Kummelgrund ylempiOne long white flash every 6 seconds · 4.7 km
- Kummelgrund alempiContinuous quick white flashes · 4.8 km
- Kasala alempiContinuous quick white flashes · 5.0 km
- Kasala3 very quick white flashes every 5 seconds · 5.1 km
- Kasala ylempiOne long white flash every 6 seconds · 5.2 km
- Merikarvian majakka2 white flashes every 20 seconds · 5.6 km
- Malskeri ylempiOne long white flash every 6 seconds · 6.8 km
- Malskeri alempiContinuous quick white flashes · 7.4 km
Not for navigation. Use the country's official charts and Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: Väylävirasto aids to navigation (Finnish Transport Infrastructure Agency) (opens in a new tab) · Checked