We took the short tour, a 1 hour trip. Recommend sitting through one loop, then decide which sites you want to see.
Great tour of the popular attractions around the city!
The guy talked a lot in an entertaining way about the things we saw. The bus was really nice, open-air and breezy. We met some people from ten states over, and they were nice. We did stop and look through a forest down a hill at some elephants that were allegedly visible in the zoo below, and we looked and looked and looked, but couldn't see them. If I had to guess though, I'd say they existed.