Dear Tom,
I'm happy to hear that you are going to join the Ok Om Bok Festival in Soc Trang Province. As I know, It is also called the Moon Worshipping Festival. During the festival, you can participate in games, watch traditional fashion shows and see flying lantern contests.
Here are some advice to you what you should and shouldn’t do when you are at the Ok Om Bok Festival. You should bring some bottle of water because the weather in Soc Trang is hot. You should wear comfortable trainer or shoes because you may walk a lot.
You should not wear shorts or sleeveless shirts when attending the religious ceremony. You also shouldn't litter the temple grounds.
I hope you will have a great time with your dad and enjoy the festival.
Best wishes,
Nguyen Bao Cham