As per Saini's explanation Diwali is in celebration of homecoming of Ram after his exile. Those who want to know more may click this link
Anyway, I decided we'll celebrate the Diwali at Chao Mai beach doing some BBQ and relaxing in Trang province. We set off with me, Jira, Saini and Kalpu with Vivek and Rajaram to join us later.
Sunset at Chao Mai beach