Hey
When you walk to the buses, there are absolutely NO guestrooms on street level. They are all above the street level. Technically, you walk into the lobby already on the first floor. The basement, if you will, houses the restaurants (Boma, Jiko, etc.). There is a mid-level which has a bar (Victoria Falls). So, that being said, even if you were to walk to your room, say just to the right of the giftshop, without climbing stairs, it is bringing you up beyond street level in a gradual slope. I am not sure which is Giraffe and Ostrich. I should know, shame on me, because I have stayed on both, but can't picture them. I do hope this helps.
By the way, my fiance lives in Salamanca.