The best (apochryphal) tale in this genre, at least in my opinion, concerns Benbecula. After the stranding of the SS Politician, upon which the film "Whisky Galore" was based. Bottles of the amber nectar were reputedly stashed in various places. One such cache was buried in the machair not long before the airfield constructors came along and built one of Bennie's runways over the top of it. And as they say in northern parts,"If it were a lie, it were lied tae me."