Hello, could you help me to translate the description of the event in the picture https://drive.google.com/file/d/17oKuIsfkjiRknc90DD3ImItjWtH9xH3v/view?usp=sharing

The thing is that I was travelling in Thailand by my bicycle this year and accidentally got to some holiday.

There was some public festivity in the territory of a local temle, in front of the temple I made this picture, there were a lot of peole, free food, music, buddist monks talking with people and many more.

Now I am making a video about the trip for my Youtube channel and I want to make some explanation about what was happening there. Can you tell me what is the holiday, what is it called in English? Please, give me a link about this holiday in Internet or give me a short description about the event and what it is dedicated to.

Thank you in advance.