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Griá Lighthouse

Fl White 10s🇬🇷Municipality of Andros, GROperational

Location & Light Range

About Griá Lighthouse

Griá Lighthouse, active since 1914, features a 10-meter tall, round stone tower with a lantern and gallery. Adjacent to the tower is a single-level stone dwelling for the keeper. The light source is positioned 86 meters above sea level and emits a white flash every 10 seconds, visible for 23.3 nautical miles. The lighthouse is located on a headland on Andros' northern coast. Visitors can access the site, but entry into the tower is restricted. The nearest harbor, Andros, lies 3.4 kilometers distant.

Why it matters: This navigation aid marks the northern approaches to Andros, assisting vessels navigating the island's northern tip.

Light & Optic

Characteristic Signature
Fl White 10s
Flash Type
Flashing
Light Color
White
Interval
10s
Raw Code
Fl W 10s
Focal Height
86m
Geographic Range
23.3NM

Construction & History

Year Built
1914

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
stone

Structure: round stone tower with lantern and gallery, attached to a 1-story stone keeper's house

Location

City
Municipality of Andros
Country
🇬🇷Greece
Region
South Aegean
Sea Region
Located on a spectacular promontory on the north side of Ándros, about 5 km (3 mi) north of Ándros Chóra.
Latitude
37.8984°
Longitude
24.9544°

References & Identifiers

Nearest Port
Andros(3.4 km)
Admiralty No.
N4338
ARLHS No.
GRE-072
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Frequently Asked Questions

How do mariners identify Griá Lighthouse at night?+
Griá displays the characteristic Fl White 10s. 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 Griá Lighthouse guide vessels into?+
Griá Lighthouse assists vessels approaching 5 nearby ports. The closest is Andros at 3.4 NM to the SSW. Other ports served include Gávrion (10.6 NM W), Órmos Panórmou (15.6 NM SSE), Tínos (23.8 NM SSE), Karystos (26.3 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Griá Lighthouse still active and maintained?+
Yes, Griá 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 Griá Lighthouse?+
Griá 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 Griá Lighthouse?+
You can track vessels near Griá 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.