Pattaya beach is the nearest beach driving from Bangkok. It takes only 2 hours taking car from Bangkok to Pattaya.
I would recommend one MUST GO sightseeing in Pattaya, especially for family travel that is Nong Nooch garden.
Kids, teenage, or adult would love it! Anyway, I am not recommend during Summer at noon. The weather is really hot and your shirt will get wet with your own sweat. It's a really good place to take photo for honeymoon lovers or family to keep good memory together.
The car below can't really drive but it created from small clay flowerpots. We are really impressive with this sightseeing place and the garden and flower here is really beautiful. Believe me! you would love this place like us.