bkkjones

I intend to go to pattaya (and on to koh larn) next week on the 10th. Ive heard around song kran transport can get busy, is there any way for me to book this van, or the bus from ekamai, in advance? Or are there so many busses that it wont be necessary? Also can i book the boat to koh larn and the return trip to bkk in advance? Thanks for your help