Several lighthouses were established on the islands.
There is a lighthouse at the tallest hill 48 m (157 ft) on North button island, established 1983.
[7]
There is a lighthouse at the tallest hill 50 m (164 ft) on Middle button island, established 1983.
[8]
There is a lighthouse at the tallest hill 36 m (118 ft) on south button island, established 1983.
[9]
^"A&N Islands - Pincodes". 22 September 2016. Archived from the original on 23 March 2014. Retrieved 22 September 2016.{{cite web}}: CS1 maint: bot: original URL status unknown (link)