Thailand has a long coast. Point at any small/medium settlement or island and Google it. Even Phuket has areas that aren't super developed. I visited Koh Yao Ya

Thailand has a long coast. Point at any small/medium settlement or island and Google it. Even Phuket has areas that aren't super developed. I visited Koh Yao Yai and it was indeed chill, maybe too chill because there was nothing to do there after a couple of days.