the autumn leaves, 紅葉 （こうよう、kouyou） and leaf peeping, 紅葉狩 (もみじがり、momijigari)

There's a single word in Japanese that describes the changing color of the leaves during autumn:

紅葉　（こうよう、kouyou）

Having grown up in Hawai'i, the autumn leaves are still kind of exciting for me.  I love seeing them in the parks, on the sidewalks as I make my way to school. . .I love stepping on them.  In Japanese culture, the term hanami describes a "cherry-blossom viewing party," for many people a reason to drink outdoors alongside hundreds of other people.  They're a pretty big deal.  I started wondering if we had corresponding autumn leaf-viewing parties.  At that point, some part of my mind recalled an episode of The West Wing (in Japan the show is called　"ザ・ホワイトハウス"), in which they use the term "leaf peeping."  I didn't know it but it's a real thing in America.  President Bartlet didn't know it either.  People go out and look at and take pictures of the changing colors of the leaves, and there's an official term for this.  The Wikipedia entry for leaf peeping is at
http://en.wikipedia.org/wiki/Leaf_peeping

and in that article, I found out that there is a Japanese equivalent, called momijigari (紅葉狩).  Travel agencies offer tours. 

This video came out kind of small (taken with my i-Phone), so it might be hard to see that they're trying to catch the leaves raining down on them.  If you full-screen it you should be able to see it a little better.