Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Grassy Hill Lighthouse

Fl (2) W 6s🇦🇺Queensland's Far North, AUOperational

Location & Light Range

About Grassy Hill Lighthouse

This white, round concrete tower stands 6 meters tall and is topped with a red cupola. Its focal plane reaches 162 meters above sea level, providing a geographic range of 9 nautical miles. The light emits two white flashes every 6 seconds. It is situated on Grassy Hill, overlooking Cooktown and marking the south side of the Endeavour River entrance.

Why it matters: The lighthouse is recognized for its heritage significance, being listed on the Queensland Heritage Register.

Background
Grassy Hill Light, also known as Cooktown Light, is an active lighthouse located on Grassy Hill above Cooktown, Queensland, Australia, on the south side of the entrance to Endeavour River.

Light & Optic

Characteristic Signature
Fl (2) W 6s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
6s
Raw Code
Fl.(2)W. period 6s
Focal Height
162m
Geographic Range
9NM

Construction & History

Heritage Status
listed on the Queensland Heritage Register

References & Identifiers

Admiralty No.
K3208
NGA No.
9868
Wikipedia
Read on Wikipedia →
Wikidata
Q1543590 →

Tower & Structure

Tower Height
6m
Tower Shape
round
Tower Color
white and red
Material
concrete

Structure: White round tower, red cupola; 20

Location

City
Queensland's Far North
Country
🇦🇺AU
Latitude
-15.4606°
Longitude
145.2555°

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Grassy Hill Lighthouse on the live nautical map

Plan voyages near AU, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Grassy Hill Lighthouse at night?+
Grassy Hill displays the characteristic Fl (2) W 6s — 2 white flashes every 6 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 Grassy Hill Lighthouse guide vessels into?+
Grassy Hill Lighthouse assists vessels approaching 3 nearby ports. The closest is Cooktown at 0.9 NM to the SSW. Other ports served include Cape Flattery (29.2 NM NNE), LIZARD ISLAND (48.6 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Grassy Hill Lighthouse still active and maintained?+
Yes, Grassy Hill 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 Grassy Hill Lighthouse?+
You can track vessels near Grassy Hill 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.