This may be a little helpful.
http://www.richardbarrow.com/201 ... ne-law-in-thailand/
Ba cautious. It is not an official translation from the Thai Royal Gazette.
I flew in Thailand with my P4 relying on that information.
And... on this http://www.ratchakitcha.soc.go.th/DATA/PDF/2558/D/086/6.PDF
Translated by my wife.
Be twice cautious when flying in Thailand, anyway.
Even adhering strictly to what is written in these documents, you'll not have the certainty that something will go eventually wrong with local authorities. Most of the times police will observe you with curiosity, but exceptions are not rare.
Once I flew near Krabi, in a place absolutely free from buildings, roads, infrastructures of any kind, people gathering etc etc. Moreover, the P4 was flying over the sea.
Suddenly I was approached by 3 guys wearing normal clothes and wearing only a cap with the acronym "NPD" (national park department). They told me to take down the drone IMMEDIATELY !
I did what they ask. I apologized and they were pretty surprised I can talk some Thai with the correct pronunciation and tone. That probably was the cause that saved me from paying a fine or more likely... a bribe. Indeed, reading those documents you don't read anywere that is forbidden to fly over a marine park. Maybe is an internal regulation of the PhiPhiNat Park, but nobody I know is aware of a similar thing.
A boat owner, who assisted to the whole scene, told me they were probably hunting for bribes. So, eventually several thousand bath to each of them would have accomodate the situation. A thai owner of a phantom living in Railey confirmed me that he can fly freely, but foreigners with drones are sometime "targeted". In these situations there is no much you can do.