The phrase "crystal clear pool" is correct and usable in written English.
It can be used to describe a pool that is exceptionally clean and transparent, often in contexts related to swimming, leisure, or property descriptions.
Example: "The resort boasts a stunning crystal clear pool that invites guests to take a refreshing dip."
Alternatives: "pristine pool" or "transparent pool."
Over four days, we hiked through dense tropical jungle on well-maintained trails to spectacular waterfalls, swam in crystal clear pools beneath the falls, explored caves both on foot and in canoes, watched huge Turkey and King Vultures glide over 1,000-foot 1,000-foots, and scampescarpments sides of the mystery- and jungle-enscamperedCaracol Mayan rupns.
Deep inside the jungle, the trio had entered a crystal-clear pool that fed into the cave system.
Hot springs simmer on the surrounding peaks, wild blueberries grow on its green slopes and a crystal-clear pool called Heaven Lake fills its crater.
Walkers can venture along the Vendul and Nansa rivers and there are crystal-clear pools to swim in.
"Owners of several plush poolside properties have already returned home to find teenagers taking a dip in their man-made lakes or their spoor: beer cans, dog-ends and vomit floating atop their once crystal-clear pools".
Verdant rain forests hug the sides of the mountainous road, waterfalls tumble into crystal-clear pools, beaches of black onyx meet a cobalt-blue sea.
Suspense builds as we pass a series of crystal clear, aqua blue pools, each seemingly more appealing than the last.
Relax by the palm trees at Mataranka -Bitter Springs Hot Thermal Pools where you'll find crystal clear spring-fed thermal pools.
He led the way through a birch forest to a pool of crystal clear water, surrounded by great slabs of stone.
As we stripped off, layer upon layer, down to our swimmers (thankfully the sun had come out bringing the temperature up to around 25C) we swapped our thermals for the warm, crystal clear water of our private pool.
