 Grotto Point Light | |
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| Location | Balgowlah Heights New South Wales Australia |
|---|---|
| Coordinates | 33°49′3.97″S151°15′41.64″E / 33.8177694°S 151.2615667°E /-33.8177694; 151.2615667 |
| Tower | |
| Constructed | 1910 |
| Construction | masonry and brick tower[2] |
| Height | 26 feet (8 m)[1] |
| Shape | cylindrical tower with domed roof |
| Markings | white tower |
| Operator | Sydney Harbour National Park |
| Light | |
| First lit | 1911 |
| Focal height | 61 feet (19 m) |
| Lens | catadioptric lens |
| Range | white :12 nautical miles (22 km; 14 mi) red / green: 9 nautical miles (17 km; 10 mi) |
| Characteristic | flashing(4) WRG 15s. white on range, red right, green left, obscured other |
Grotto Point Light, also known asPort Jackson Entrance Range Front Light, is an activelighthouse located at Grotto Point, a rockyheadland at the southernmost tip ofBalgowlah Heights,New South Wales,Australia, on the north side ofSydney Harbour. It serves as the frontrange light,Rosherville Light serving as the rear light, intoPort Jackson. Rosherville Light is located almost exactly 1 mile (1.6 km) (1,690 yards (1,550 m) to be exact) behind Grotto Point Light.
The decision to build the range lights was taken in 1909. Construction began in 1910 and the light was first lit on September 1, 1911. It is one of four lighthouses in a style sometimes called "Disney Castle", the others beingRosherville Light,Vaucluse Bay Range Front Light andVaucluse Bay Range Rear Light.[3]
The original light source was acarbide lamp (acetylene gas) which was initially generated on-site, and later replaced by compressed gas cylinders brought by boat.[4]
Later, the light was electrified and connected to themains electricity.
The structure is a masonry and brick domed tower, attached to two barrel-vaulted service sections in decreasing heights, all painted white. The structure is surrounded by a white picket fence. The light is shone through a 2 by 1 metre (6.6 ft × 3.3 ft) horizontal slit, about two-thirds of the way up the tower.
The lens is acatadioptric apparatus.
The light is operated by the Sydney Ports corporation while the site is managed by theDepartment of Environment, Climate Change and Water as part of theSydney Harbour National Park.[4]
The site is accessible by a shorthike from Castle Rock track. The grounds are open but the tower is closed to the public.
Media related toGrotto Point Light at Wikimedia Commons| North Coast |  | |
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| OutsideSydney Harbour | ||
| InsideSydney Harbour | ||
| South Coast | ||
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Authority control databases: Geographic |
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