"You Can Drink Beer All You Want" - Okyaku Tram, Kochi Japan

From JNR Shikoku Railway Company brochure.
Charter info (In Japanese.)

From Kochi Visitors pamphlet.

From: http://jr-shikoku.co.jp/global/pdf_modelcourse/english/index.html#page=3

Forget the Isle of Man, it looks like Japan's Shikoku Island has got it beat for railway diversity. The pamphlet linked to above is called the Model Course, in other words, suggested tour routes. One could easily spend an entire summer on this island and not run out of things to see and do.