Thanks Simon.
>> Where was that taken Regis?
It was taken in Nongkhai province.
>> and how did you find out about such an event
Along the roads, you can often see temples 'advertisements' for such events (written in Thai).
I have written 5 pages on this topic in you are interested
http://www.thaiworldview.com/bouddha/ceremo12.htmRegis