Tourists swarm the Yuyuan Garden in east China's Shanghai Municipality, Feb. 10, 2013. Shanghai saw a tourist peak on Sunday, the first day of the 2013 Spring Festival holiday. The city is estimated to receive more than three million tourists during the week-long holiday. [Xinhua]

Tourists swarm the City God Temple of east China's Shanghai Municipality, Feb. 10, 2013. Shanghai saw a tourist peak on Sunday, the first day of the 2013 Spring Festival holiday. The city is estimated to receive more than three million tourists during the week-long holiday. [Xinhua]

A child sits on a man's shoulders as they visit a scenic spot in east China's Shanghai Municipality, Feb. 10, 2013. Shanghai saw a tourist peak on Sunday, the first day of the 2013 Spring Festival holiday. The city is estimated to receive more than three million tourists during the week-long holiday. [Xinhua]