Oil slick and ‘tar balls’ wash up on Phuket’s beaches – what caused it?

What caused it? We visit Nai Yang beach as volunteers are part of a huge beach clean up involving oil slick ‘tar balls’ that have washed ashore Phuket beaches creating a huge mess. Here’s Michelles’ Facebook page…

https://www.facebook.com/Sustainable-Mai-Khao-102076665030960/