I stayed one night in Laem Mae Phim.
It's a popular location for BKK Thais, families on the beach and a 1/2 a mile of beach side fish cafes.
Rustic old buildings.
Was going to stay longer until a morning walk on the beach discovered the high tide mark was like a garbage dump, so moved onto Ko Chang.
The further you get around the corner from BKK, but remember you won't find pristine anywhere in the World. Whole Oceans are polluted.
[I don't see the sense of hiring an interpreter, as suggested!?]
Most of my time in Thailand has been in places that seldom see farangs and I have never had problems with language. Even in the remotest places there always seems to be someone in a shop next door, or the high school kid in back who is more than helpful that.