I've been looking at some of the islands around Thailand and Italy, especially these "floating island" type rock formations. Immediately below is a place called Phi Phi in Thailand, which looks like it'd make a perfect smugglers den.
And here are some random shots from my internet scouring.
I've mostly been looking at rocks here, not so much everything else that's going on. I'm interested to see what kind of silhouette these could create if they were entombed in mist, or back-lit.