The location has been posted. "From Hayaek, go about 50 metres up Chao Fah West."
That would be about here, I think.
https://www.google.com/maps/@7.8232454,98.3404213,3a,75y,279.94h,50.1t/data=!3m7!1e1!3m5!1s6xaxQ_NQ8CffQAA_8WtR2w!2e0!5s20220601T000000!7i16384!8i8192