If you are are on the left side of the resort -Rafiki or Pumba- you can walk to the elevator bank in Rifiki that takes you to the back entrance to the pool which is closest to the actual pool. If you are in the right side Timon and Zazu you have a choice. You can continue walking past the lobby section as above or yo can walk out the main entrance from the lobby make right and the main pool entrance is a few minute walk note that you will need to walk down steps to get the actual pool this way as you enter by the gym which is on top of a hill.