Well if i where you i would hire a minivan, for a day, go explore the countryside down towards Trat...did that last year, while returning from cambodia...My family was in Pattay for golfing reasons. So i Booked a minivan, and packed the family, we went early in the morning and returned around 22'ish.
It was a very good trip, and saw alot of interesting things, i can highly recommend that, paid around 3000Bth in all, and the driver was a very good guide.
Booked the minivan and driver in on of the small Travel Agencies in Jomtien. Cant remember what its called.
You could also Hire a boat, pack a good lunch basket, and goto on of the islands of the coast, the water and beaches there are clean, and some good snorkeling can be done, make a day out of it.
There is also a carting club in Pattaya, where you can rent a gocart, have never tried it though, but can be done.
if your a bit more adventurous, you could goto Ko samet, or even Ko Chang for a couple of days.
Pattaya, is the Las Vegas of the SE Asia...its not appealing, for a holliday, unless your into the barscene.....But that is my opinion.
If you want to experience Thailand, there is truely better places
