The list also included the best beaches in the world, with Grace Bay in Turks and Caicos, taking claiming the planet's best beach title.
Rounding out the podium this year are Baia do Sancho in Brazil which was knocked back into second spot, and Cuba's Varadero Beach. Clearwater Beach was the only USA entry on the world list this year.
TripAdvisor has millions of reviews from travelers who've been to thousands of beaches around the globe, and analyzed them to name the world's best for 2018.
There are traditional seaside attractions, famous beach huts for hire, water sports and stunning views of the Isle of Wight and the Purbecks.
The bay also has its own micro-climate, giving it some of the warmest sea temperatures in the UK.
In the United Kingdom, the pristine Luskentyre beach on the Isle of Harris, Scotland, was rated second best, followed by Rhossili Bay in Wales and then Brighton beach.
Over in the U.S., the most popular beach is Clearwater Beach in Florida, perched on a barrier island that offers calm shallow waters, making it ideal for families. Hengistbury Head, Bournemouth, Dorset Hengistbury Head is home to over 500 plant species and 300 types of birds 8.
With its gorgeous golden sands backed by attractive burnt-orange cliffs is the top rated beach in Portugal at number three. Fistral Beach, Newquay, Cornwall Fistral Beach in Newquay is hugely popular with British surfers 10.