Opis
St Michaels Mount of the Cornish coast near Lands End. Lat/Long 50.1172° N, 5.4778° W.
The National Trust properts is cut off from the mainland at hight tide and is accessed by small ferry boats. At low tide you can access the island via a granite causeway.
For more info - https://en.wikipedia.org/wiki/St_Michael%27s_Mount