The park is so large that people get around it by bus and electric train. To give you an idea; here's the entrance:
Luckily I had a lovely and talented Vietnamese guide so I was able to make sense of most of it.
For me, the oddest party was the 'hells', temples which were basically haunted houses. They were scary enough at first, but after a little while you get used to them.
Trouble was, I had to be back in HCMC by a certain time and this cut my enjoyment short. I'll be back there one day...