The JR Pass is a special pass available only to those entering Japan on a tourist visa. It allows for unlimited travel around Japan on JR lines usually at a price much less than purchasing individual tickets.
We went for our honeymoon, and frankly we had pretty high hopes. Japan easily surpassed those hopes. Without hyperbole this really was one of the best holidays I've ever had. Also, big thanks to the Japan Centre, and Kaoru in particular. It wouldn't have been anywhere near as special without her help. Arigatou gozaimasu!