Visit Greece has shown support for the Make Holidays Greener campaign.
The awareness week will be held all July to encourage cleaner and greener beaches with clean-ups and tips to be handed out to customers.
The Travel Foundation has free resources online to help companies get involved.
“We’re delighted that Visit Greece is onboard. Their support will help us to spread the word that cleaner, greener beaches aren’t just important for tourism, they are essential for coastal communities and wildlife such as sea turtles too,” said the Travel Foundation’s acting chief executive Salli Felton.