Steven Tyler
Norm Smith Medallist
I'm biasedYou are comparing apples with durians. Nha Trang is not unique. Halong Bay is. It is classifieds one of the seven natural wonders of the world.
Probably depends what mood you are in as to which you get the most out of. But nothing on earth comes to mind as a comparison to Halong Bay
My wife was born in Nha Trang