It starts in Downtown Disney and ends up inside DL right above the Nemo submarines. Last time we were there, it was one way and then you get back in line to ride the rest of the way. It gives a view of CA, Downtown Disney, GCH, DLH. It is a nice way to get into (or out of the park) without all the walking. You must have a ticket to DL to ride it, as it stops in the park.