Vivid colors on shoreline of tropical island with limestone cliffs washed by calm emerald water of turquoise lagoon, Koh Tao, Thailand

vivid colors shoreline tropical island limestone cliffs washed calm emerald water turquoise lagoon thailand scenic colorful travel ocean beauty sea summer seascape tropic nature exotic blue beach landscape waves shore scenery vacation tourism paradise sky mountain beautiful traditional idyllic seashore crashing sandy washing sailing serene lagoons steep destination ko tao