The park staff will sort the waste out for tourists to take back. Many tourists are interested in participating in the project, park authorities said.
Phu Kradueng National Park chief Samret Phusansri said on Sunday that tourists continue to pay a lot of attention and visit the Phu Kradueng National Park in good numbers.
On December 11, 3,332 tourists stayed overnight in 59 houses and 270 tents on the mountain, he said.
The park has also invited tourists to join the local garbage recovery programme.
The aim of the programme is to promote tourism that understands nature and create an awareness about conservation, he said.
"We would like to thank tourists for taking this opportunity, resulting in zero plastic waste on Phu Kradueng Park," Samrat said.