"tranquil island" is correct and usable in written English.
You could use it to describe a place that is seen as peaceful, calm and secluded. For example: "The sun set over the tranquil island, painting the sky in shades of pink and orange."
The green, tranquil island of Kauai has lost almost half of its native forest bird species.
The location that looks just right for you is the beautiful and tranquil island of Menorca, pictured.
On the tranquil island of Islay, the Bruichladdich distillery produces some of Scotland's finest single malt using traditional techniques.
Barbados, a much more tranquil island, completed a similar process in 2002, but has made no moves to hang anyone since.
A stunned silence hung over the boat as we took in our first glimpse of this beautiful and utterly tranquil island.
From €500 per week (sleeps 2), +39 338 9509366 A tranquil island retreat where there's little to do besides walking, wine tasting and gazing at sunsets.
Prince's Islands These tranquil islands just off the coast are where chic Turks spend the summer.
Today, the children of many immigrants have returned, seeking what they say is a higher quality of life in these tranquil islands.
The island of Barbuda, located in the Eastern Caribbean, is situated north of Antigua and well known as one of those quiet, tranquil islands that has enjoyed underdevelopment, with the feeling of being deserted most of the time.
These remote, tranquil islands are known for their over-the-water huts and terrific snorkeling and diving locales.
But more than that, it is a discomfiting reminder of how at least one part of this once-tranquil island is changing, made readily apparent by the jumble of construction crews building the rail line and a skyline already crowded with cranes.
