The Expo 2010 Organizer advises people to make an early visit to avoid overcrowding in the event's final two months.
Only 60,000 group tourists are expected today and tomorrow, and the weather is ideal, the Organizer said.
Huge attendance is expected at the World Expo from mid September to the end of October, according to the experiences of previous World Expos.
As of yesterday, more than 18 million tickets had yet to be used, said the ticketing center of the Bureau of Shanghai World Expo Coordination.
Visitor number topped 47 million at 9:30am today.
