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Río Luján Lighthouse

Fl Red 5s🇦🇷Beccar, AROperational

Location & Light Range

About Río Luján Lighthouse

Also known as: Río Luján (San Isidro)

A red, square skeletal concrete tower stands 9.5 meters tall on the south side of the Río Luján entrance. The structure's focal height reaches 14.5 meters, casting a red light that flashes once every 5 seconds. This aid has a geographic range of 11.7 nautical miles. An earlier navigational light at this station was a ruined concrete skeletal tower situated nearby. The site is accessible to the public, though the tower itself is closed.

Why it matters: This lighthouse is essential for guiding local and recreational vessels safely into the Río Luján, a key tributary of the Río de la Plata, particularly for members of the Club Náutico San Isidro. It specifically warns mariners about the river entrance, preventing groundings and ensuring smooth passage in a busy boating area.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
14.5m
Light Range
8NM (14.8 km)
Geographic Range
11.7NM

Construction & History

Significant events: Earlier light for this station was a ruined concrete skeletal tower nearby

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Shape
square
Tower Color
red
Material
concrete

Structure: square skeletal tower, painted red

Location

City
Beccar
Country
🇦🇷Argentina
Region
Buenos Aires
Sea Region
South side of the entrance to the Río Luján, which enters the Río de la Plata at San Isidro on the north edge of Buenos Aires.
Latitude
-34.4494°
Longitude
-58.5067°

References & Identifiers

Nearest Port
San fernando(1.6 km)
Admiralty No.
G0860.2
NGA No.
110-19402.8
ARLHS No.
ARG-127
Wikidata
Q115219711 →
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Frequently Asked Questions

How far offshore can Río Luján Lighthouse be seen?+
With a focal height of 14.5 meters and a nominal range of 8 nautical miles (approximately 14.8 km), Río Luján 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 Río Luján Lighthouse at night?+
Río Luján displays the characteristic Fl Red 5s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Río Luján Lighthouse guide vessels into?+
Río Luján Lighthouse assists vessels approaching 5 nearby ports. The closest is San Fernando at 1.3 NM to the WNW. Other ports served include Vicente López (4.2 NM SSE), TIGRE (5.1 NM WNW), Pablo Podestá (9.1 NM S), Buenos Aires (11.9 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Río Luján Lighthouse still active and maintained?+
Yes, Río Luján 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.
How can I track vessels near Río Luján Lighthouse?+
You can track vessels near Río Luján 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.