Cape Naturaliste Lighthouse

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Cape Naturaliste Lighthouse
Cape Naturaliste Lighthouse is located in Western Australia
Cape Naturaliste Lighthouse
Location Cape Naturaliste, Western Australia
Coordinates 33°31′S 115°00′E / 33.517°S 115.000°E / -33.517; 115.000
Year first lit 1904
Construction Limestone
Tower shape Cylindrical
Markings / pattern White
Height 20 meters
Focal height 123 metres
Original lens 1st order Chance Brothers Fresnel lens
Intensity 930,000 cd
Range 25 nautical miles (46 km)
Characteristic Fl. (2) 10 s
Admiralty number K1790
NGA number 8880
ARLHS number AUS-040
Naturaliste Light house

Cape Naturaliste is also the site of a lighthouse which was activated in 1904. It is a 20 metres (66 ft) high cylindrical tower built of limestone that still uses its original first order Fresnel lens made by Chance Brothers. The light characteristic is "Fl. (2) 10 s", i.e. a group of two flashes every ten seconds, the focal plane is at 123 metres (404 ft) above sea level. Another precious lens optic is displayed there, the second order Fresnel lens of the Jarman Island Light, as well as the original Great Sandy Islands beacon. Both items were originally used on the Pilbara coast further north.

The lighthouse was constructed of limestone quarried from nearby Bunker Bay, which was also known as the "Quarries".