'China's Tourists'

This article is very short, so first, please listen to the news article: Click here to listen

Questions:
1) There is a reference to 'expanded horizons'. What does it mean?
2) What expression is used to mean 'not able to keep up'?
3) Where in Japan has there been a noticeable increase in tourists from China?

If you couldn't catch everything from listening, then please see the article here.
You can see the full BBC article here.

1) Expanded horizons means to develop a wider view of the world, rather than only what one is used to.
2) Lag behind
3)