Interesting place to visit. I paid 80 baht to get around using tram. They have the schedule. We arrived around 11.00 so we chose the 13.00-15.00 tram. There are some tuk-tuks ready to take us to the tram pickup point, which is quite far from the information pavilion.
The staff are so nice and helpful. My friend and I looked around at some spots while waiting for the scheduled tram, we were almost late to get back to the pickup point. We checked our map of the Ancient City but weren't sure where to go. Luckily, we met some staff who were recharging the electric golf cart. One of the staff helped us to get back to the pickup point using the golf cart.
The tram was supposed to stop at 4 spots, but as I remember, the driver stopped at more than 4 spots. There were some tour guides at the first spot. They were so friendly and informative as they informed us about the spots we visited.