Grunden Rock Lighthouse

Grunden Rock Lighthouse is not mentioned in the provided wikitext. However, information can still be extracted and presented in a general format. The subject of the wikitext is Esperanza Base, a research station located in Hope Bay, Trinity Peninsula, on the Antarctic Peninsula. It was established on December 17, 1953, by Argentina. The base has a civilian presence and is the only settlement of its kind on the Antarctic mainland.

Esperanza Base has a total area of 0.3744 hectares and an elevation of 25 meters. The base is operational year-round and has a population of 56 people during the winter and 116 during the summer. Various scientific activities are conducted at the base, including limnology, glaciology, seismology, oceanography, and geology.

The base's motto, "Permanencia, un acto de sacrificio," translates to "Permanence, an act of sacrifice." This reflects the challenges and dedication required to maintain a permanent human presence in the harsh Antarctic environment. Despite the lack of information on Grunden Rock Lighthouse, Esperanza Base provides an interesting example of human settlement and scientific research in one of the most extreme regions on Earth.

Light and tower

The light has a focal height of 26 metres. The light has a range of 6 nautical miles. Its light characteristic is Fl W 2s. The NGA list of lights numbers it 2756. The Admiralty list of lights numbers it G1389.