After Khao Yai, we were hooked on Thai camping so decided to go see Kaeng Krachan. I rented a car in BKK and managed to drive thru city traffic and get out of town with few mistakes. The park features incredible foggy valley views from the highest peak, but you have to get up there early in the morning to see it. We tried to drive up inthe afternoon and camp overnight but were turned back for not having a 4WD. The second day we hired a driver with a Toyota Pickup with big huges tires, brush guards - the works. I would have loved to drive that vehicle myself.