On the plane ride down they will hand out a arrival/departure slip to fill out. When you land you take that to immigrations and they will
approve it and give you the stub (do not lose the stub because you need to present it when you leave). Then you get your bags and go
to another line for customs. They ask what you are bringing in, they want you to declare any gifts or expensive items.
That's it then you head out the doors on the left and either go to one of the tour desks for your ride and off you go.

Hope I explained that right ?!