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Althorpe Island Lighthouse

Fl W 5s🇦🇺South Australia, AUOperational

Location & Light Range

About Althorpe Island Lighthouse

The Althorpe Island Lighthouse was constructed and first illuminated in 1879. Its light reaches a focal height of 107 meters above sea level. The lighthouse produces a single white flash every 5 seconds. This characteristic gives it a geographic range of 19 nautical miles. The structure serves as a navigational aid in South Australia.

Why it matters: This lighthouse is recognized for its historical value and is listed on the South Australian Heritage Register.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 5s
Focal Height
107m
Geographic Range
19NM

Location

City
South Australia
Country
🇦🇺AU
Latitude
-35.3715°
Longitude
136.8602°

Nearby Vessels

Flag
Type
Name
Dist.

Construction & History

Year Built
1879
Heritage Status
listed on the South Australian Heritage Register

References & Identifiers

Admiralty No.
Q2000.1
NGA No.
8412
Wikidata
Q28376305 →
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Frequently Asked Questions

How do mariners identify Althorpe Island Lighthouse at night?+
Althorpe Island displays the characteristic Fl W 5s — 1 white flash every 5 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.
Which ports and harbors does Althorpe Island Lighthouse guide vessels into?+
Althorpe Island Lighthouse assists vessels approaching 2 nearby ports. The closest is Kingscote at 40.9 NM to the ESE. Other ports served include Port Giles (49.2 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Althorpe Island Lighthouse still active and maintained?+
Yes, Althorpe Island 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 Althorpe Island Lighthouse?+
You can track vessels near Althorpe Island 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.