China tourist visa is L visa issued for a stay of short duration, usually 30 days, but not more than 90 days, and can not be extended upon expiration.
China group tourist visa is issued to foreigners traveling in tour groups of at least 10 participants. This visa is not issued on individual passports, but on a separate form, which requires the group members to enter and exit the Chinese border together.
Since November 15, 2000, foreigners traveling to Hong Kong and Macao Special Administrative Regions (SAR) in tour groups organized by travel agencies registered in those SARs are exempted from the visa requirements for a period of not exceeding 6 days when entering into the following Chinese mainland cities: Guangzhou, Shenzhen, Zhuhai, Foshan, Dongguan, Zhongshan, Jinangmen, Zhaoqing, and Huizhou. All travelers must be citizens of countries having diplomatic relations with the People Republic of China and carrying an ordinary passport.