It was drawn up by making open calls on social media by TravelMole.com, Vision on Sustainable Tourism, Totem Tourism and Green Destinations followed by a selection by 30 international tourism sustainability experts.

"The Global Top 100 aims to recognise tourism destinations that have worked hard to make a difference and take sustainability seriously," GreenDestinations.info director Albert Salman said.

"Nevertheless, no destination is sustainable for the full 100 percent."

For the Top 100 the only available global assessment tool for this purpose, the Global Sustainable Tourism Review, GSTR, was used.

Salman said: "Carbon emission of travel has not been calculated by us. This is what we want to add next year. We recommend travellers to compensate their carbon emission".