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Sandbäck Lighthouse

Fl (3) White 10s🇫🇮Kustavi, FIOperational

Location & Light Range

About Sandbäck Lighthouse

Constructed in 1963, this 10-meter cylindrical concrete tower is located on a shoal approximately 13 meters above sea level. The structure is painted orange with a white horizontal band. It features a lantern room, a double gallery, and a helipad at the summit. The light produces a white flash every 10 seconds, with a geographic range of 11.3 nautical miles. Public access is permitted to the site, but not inside the tower.

Why it matters: This marker indicates a shoal located northwest of Isokari island, offering navigation assistance within the Finnish archipelago.

Light & Optic

Characteristic Signature
Fl (3) White 10s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
10s
Raw Code
Fl W 10s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

Year Built
1963

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
orange with a white horizontal band
Material
concrete

Structure: round cylindrical concrete tower with lantern, double gallery, and a helipad on top

Location

City
Kustavi
Country
🇫🇮Finland
Region
Southwest Finland
Sea Region
on a shoal about 13 km (8 mi) northwest of Isokari island
Latitude
60.7667°
Longitude
20.7500°

References & Identifiers

Nearest Port
Uusikaupunki(18.3 km)
Admiralty No.
C4450.4
ARLHS No.
FIN-054
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Frequently Asked Questions

How do mariners identify Sandbäck Lighthouse at night?+
Sandbäck displays the characteristic Fl (3) White 10s — 3 white flashes every 10 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The white color may indicate a specific sector or warning zone.
Which ports and harbors does Sandbäck Lighthouse guide vessels into?+
Sandbäck Lighthouse assists vessels approaching 5 nearby ports. The closest is Uusikaupunki (Nystad) at 18.8 NM to the E. Other ports served include VUOSNAINEN (21.3 NM SE), Brändö (22.9 NM SSE), LEIVONMAKI (22.9 NM ENE), Harvaluoto (25.4 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sandbäck Lighthouse still active and maintained?+
Yes, Sandbäck Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Sandbäck Lighthouse?+
Sandbäck Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Sandbäck Lighthouse?+
You can track vessels near Sandbäck Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.