The document discusses the location of cities in the western and eastern banks of the Pearl River Delta region in China. It notes four international airports within a two hour drive, including Zhuhai Airport, and describes transportation links like the Guangzhou-Zhuhai Intercity MRT and cargo rail. It also provides details about the Hong Kong-Zhuhai-Macao Bridge project, mentioning its approximate length of 39.6km and construction timeline from 2009 to 2015.