https://en.wikipedia.org/wiki/Trwyn_Du_Lighthouse

https://commons.wikimedia.org/wiki/File:Smalls_LIghthouse_-_10th_June_2018.jpg

https://commons.wikimedia.org/wiki/File:The_Needles,_Isle_of_Wight,_England-2Oct2011_(3).jpg

https://en.wikipedia.org/wiki/Bishop_Rock,_Isles_of_Scilly

https://en.wikipedia.org/wiki/File:James_Walker,_Engineer_-_geograph.org.uk_-_1876498.jpg