Guys
Just got back from Phuket, no problems getting into and out of Thailand with drone. They did ask me what was inside my drone case and when I explained the security staff did not understand. She requested it be individually x-rayed but no problems.
I did register my Mavic 4 weeks before going but of course got no answer from Thai authorities.
Flew multiple times but never in national parks. Took my Mavic to outer island on snorkelling trip hoping to get footage but guide told me I could not fly after I asked. I didn’t see any signs or notices in the park nor the tour operator saying drones were banned.
I flew off the hotel beach and nearby choosing early morning and mid afternoon when it was the most quiet. Stayed as incognito as possible. Many people saw the Mavic in the air but my flight was never agresssive, low, fast and intrusive. Almost nobody queried me about my flying. Only guy that came up was an expat Scandinavian chap who asked me to show is Thai daughter the screen while I was flying. Had a long chat while I was buzzing around about everything from drones to life in Thailand.
While there are drone laws in Thailand, I doubt they are fully enforced. Just don’t fly over high profile places and where you can annoy people and you will most likely be fine. Apply common sense.
Cheers
Etops