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Prostvikkalven Lighthouse

Fl White 12s🇫🇮Pargas, FIOperational

Location & Light Range

About Prostvikkalven Lighthouse

Also known as: Prostvikkalven (Prostvikskalven)

This white, cylindrical stone tower stands 6 meters tall, with its lantern and gallery painted white. It is situated on the northeastern tip of a small island, which lies off the northeastern tip of Lillandet, near Pargas in Southwest Finland. The focal height of the light is 17 meters, and it emits a white flash every 12 seconds, visible for a geographic range of 12.4 nautical miles. The lighthouse is operational, though the tower itself is closed to the public while the site remains open. It is located 5.9 kilometers from the nearest port of Nagu.

Why it matters: Prostvikkalven lighthouse is essential for safe passage through the intricate channels off Lillandet, delineating safe routes and warning of hazards in this complex archipelago.

Light & Optic

Characteristic Signature
Fl White 12s
Flash Type
Flashing
Light Color
White
Interval
12s
Raw Code
Fl W 12s
Focal Height
17m
Light Range
8NM (14.8 km)
Geographic Range
12.4NM

Location

City
Pargas
Country
🇫🇮Finland
Region
Southwest Finland
Sea Region
northeastern tip of an island off the northeastern tip of the large island of Lillandet
Latitude
60.2214°
Longitude
22.1026°

References & Identifiers

Nearest Port
Nagu(5.9 km)
Admiralty No.
C4829.
NGA No.
15780
ARLHS No.
FIN-090
Wikidata
Q62033027 →

Tower & Structure

Tower Height
6m
Tower Shape
cylindrical
Tower Color
white
Material
stone

Structure: stone tower with lantern and gallery; lantern painted white

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Prostvikkalven Lighthouse be seen?+
With a focal height of 17 meters and a nominal range of 8 nautical miles (approximately 14.8 km), Prostvikkalven is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Prostvikkalven Lighthouse at night?+
Prostvikkalven displays the characteristic Fl White 12s. 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 Prostvikkalven Lighthouse guide vessels into?+
Prostvikkalven Lighthouse assists vessels approaching 5 nearby ports. The closest is Nauvo (Nagu) at 6 NM to the WSW. Other ports served include Tervsund (6.6 NM ENE), Pargas (Parainen) (7.4 NM NE), Rymättylä (Rimito) (9.8 NM NNW), Lielax (10.5 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Prostvikkalven Lighthouse still active and maintained?+
Yes, Prostvikkalven 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 Prostvikkalven Lighthouse?+
Prostvikkalven 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 Prostvikkalven Lighthouse?+
You can track vessels near Prostvikkalven 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.