Last week whilst on a trip to the Western Isles, I went to the island of Vatersay at the southern tip of the chain of islands.
On Vatersay I visited the site of the wreck of an RAF Catalina flying boat that crashed on the island in 1944. There is still quite a bit of wreckage at the site, even though it is right next to a public road and the coast of the island. It is very remote though, requiring a long ferry trip from the UK mainland to get there.
You can see my page about this site on my website here.