Are there different bus routes at Walt Disney World? What is the best way to get around without a car?

If you are staying on property, ask your resort concierge desk for a transportation guide. If you are not staying on property, ask a transportation information booth cast member for one, or ask a guest relations cast member for one. A previous poster is right that transportation between parks is free on Disney property. It is free, but confusing. The routes are direct, but differ in mode depending on the location you leave from and your desired destination. (For example, you'd take a bus from MGM to EPCOT; you'd take the monorail from the Magic Kingdom to EPCOT.) And some of the buses to some attractions only leave from on property resorts. If you want to get to Downtown Disney from the Magic Kingdom, you have to get to a nearby resort and take the bus from there--it works that way for the water parks, too. Pleasure Island is a part of Downtown Disney; it is entierly plausible to walk from the Downtown Disney Marketplace, straight through to the West Side if you are in good health. The only thing that may not be mentioned in the Transportation Guide is the Speedway. To get there, you take a shuttle from in front of the Kennel at the TTC (main Magic Kingdom parking area). It's not safe enough to walk across that parking lot. I hope this helps.