The thong bikini doesn't quite work for me.
If I was one of those girls who just lays on her towel tanning, I'd be fine.
But I am playing games in the sand, out in the water, building sand castles with younger cousins, goofing around....
I can say with absolute certainty that sand in your buttcrack while wearing a thong is one of the most awkward uncomfortable sensations ever, and ladies there is NO graceful way to get it out of there. lol
I have a few but I don't really wear them.
I do however like topless/nude beaches and in Greece about two years ago I got the best tan ever...... lol