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Dalrymple Islet Lighthouse

Fl W 5s🇵🇬Queensland's Far North, PGOperational

Location & Light Range

About Dalrymple Islet Lighthouse

This lighthouse stands 13 meters tall with a focal height of 24 meters. The square tower is constructed of steel and is painted white. Its light emits an isophase white, red, and green signal with a 4-second cycle. The geographic range of the light is 4 nautical miles. The structure is a cylindrical mast described as a 13 meter skeletal tower.

Why it matters: The lighthouse marks the eastern end of the piloted section of the Great Northeast Channel.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Iso.W.R.G. period 4s
Focal Height
24m
Geographic Range
4NM

Location

City
Queensland's Far North
Country
🇵🇬PG
Latitude
-9.6152°
Longitude
143.2977°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
square
Tower Color
white
Material
steel

Structure: Cylindrical mast; 13. CANADA-NOVA SCOTIA 87 (1)

References & Identifiers

Admiralty No.
K3288
NGA No.
9708
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Frequently Asked Questions

How do mariners identify Dalrymple Islet Lighthouse at night?+
Dalrymple Islet 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 Dalrymple Islet Lighthouse guide vessels into?+
Dalrymple Islet Lighthouse assists vessels approaching 3 nearby ports. The closest is Dalrymple Islet at 0.9 NM to the N. Other ports served include Daru (33.6 NM N), Saibai (42.7 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dalrymple Islet Lighthouse still active and maintained?+
Yes, Dalrymple Islet 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 Dalrymple Islet Lighthouse?+
You can track vessels near Dalrymple Islet 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.