lets see, travertine....check, turquoise water....check, sedimentary layers visible in background....check, gradient...check.....looks like Havasu to me! Could always be something in Mexico or S.A. too, lots of travertine around there, but Im gonna vote Havasu on this one as well.
"Don't f$&@ing eddy out, just run it! Whaddya doin??" -LMyers