"Beautiful turquoise" refers to a color that is vivid and appealing. It is often used to describe a shade of blue that is bright and resembles the color of the gemstone called turquoise. Full definition
It's got a great staff, exceptional views of beautiful turquoise waters, and a lot of things to do for all different types of guests. (uponarriving.com)
The pool in itself was a vacation with that gorgeous background of beautiful turquoise waters. (luxuryretreats.com)
X'tan Ha «The Waterfront» Resort is a secluded getaway 7.2 miles north of San Pedro on a stretch of pristine white sandy beach with beautiful turquoise waters. (sandypointresorts.com)