Hi! (I hope it´s the right group for my question)

Wanna escape the smog in Chiang Mai from March to April (2 months)

Can you recommend some good places in Thailand?- South??

Requirements:

* No tourist area or less visited by tourists, yet not toooo boring

* Cheaper area (apartment and food - e.g.: apartment rent max. 6000 Baht per month? I know Chiang Mai is very cheap)

* Need strong WiFi (availabe everywhere in Thailand I guess)

* Gym available (weight-lifting )

* Beach nearby would be nice

TIA!