Well done DonJuanLuis
that didn't take you long. Over to you.
The original 20-metre Wadjemup Lighthouse was completed in 1849 and was Western Australia's first stone lighthouse. It was built to provide a safer sailing passage for ships to Fremantle Port and the Swan River Colony.
Wadjemup Lighthouse on Rottnest Island
I am guessing that the Watch Hill lighthouse (posted by Fallard) was in sight of the Americas Cup course off Newport, RI where the Americas cup was successfully defended for about 130 years. Wadjemup Lighthouse would have been in clear sight by the yachts racing for the Cup during its defence in 1983.