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Ákra Kaloteroúsa Lighthouse

Fl (3) White 15s🇬🇷Donousa Municipal Unit, GROperational

Location & Light Range

About Ákra Kaloteroúsa Lighthouse

Located on Donoúsa, a small island northwest of Náxos, Greece, Ákra Kaloteroúsa is a 4.5-meter round white lantern. The structure is situated at a focal height of 147 meters, providing a geographic range of 29.4 nautical miles. Its light emits three white flashes every 15 seconds. The operational lighthouse guides vessels navigating the South Aegean Sea. Access to the site is possible by boat, but the tower itself is closed to the public, and the lantern is noted as being in very poor condition.

Why it matters: The Ákra Kaloteroúsa light aids navigation around Donoúsa, an island that presents a hazard off the coast of Náxos, by providing a distinctive flash pattern to help vessels avoid the island's shores.

Light & Optic

Characteristic Signature
Fl (3) White 15s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
15s
Raw Code
Fl W 15s
Focal Height
147m
Geographic Range
29.4NM

Construction & History

Significant events: Lantern in very poor condition

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
lantern
Tower Color
white

Structure: A 4.5m round white lantern.

Location

City
Donousa Municipal Unit
Country
🇬🇷Greece
Region
South Aegean
Sea Region
Donoúsa, a small, high island off the northwestern tip of Náxos, Greece
Latitude
37.1350°
Longitude
25.8292°

References & Identifiers

Nearest Port
Katapola(18.3 km)
Admiralty No.
N4295.5
NGA No.
15884
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Frequently Asked Questions

How do mariners identify Ákra Kaloteroúsa Lighthouse at night?+
Ákra Kaloteroúsa displays the characteristic Fl (3) White 15s — 3 white flashes every 15 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 Ákra Kaloteroúsa Lighthouse guide vessels into?+
Ákra Kaloteroúsa Lighthouse assists vessels approaching 5 nearby ports. The closest is Donousa Kykladon at 2.7 NM to the SW. Other ports served include Moutsoúna (12.2 NM WSW), Aigiali Amorgou (15.5 NM SSE), Koufonissia Kykladon (16.5 NM SW), Amorgos (18.4 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ákra Kaloteroúsa Lighthouse still active and maintained?+
Yes, Ákra Kaloteroúsa 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 Ákra Kaloteroúsa Lighthouse?+
Ákra Kaloteroúsa Lighthouse is located within the Mediterranean East-West corridor — a major trade route spanning the Mediterranean from Gibraltar to the Suez Canal. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Ákra Kaloteroúsa Lighthouse?+
You can track vessels near Ákra Kaloteroúsa 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.