You may find Hua Hin good alternative to Pattaya. Plenty of expats seen to prefer it there. Something different for you up north around Chiang Mai you may like. Hire a bike from Tony's Big Bikes and do the Mae Hong Son loop. If time allows there is the Doi Mae Salong - Pu Chi Fa - Nan - Chiang Rai also. It is a different Thailand up there. The smiles are real and Farang is not a dirty word.