It has a huge impact on the South Valley's economy.
Tuesday is opening day for the 45th annual World Ag Expo in Tulare.
Local businesses have been looking forward to the 3 day farm show all year.
They're bracing for big crowds and big revenue.
Hotels are booked and popular restaurants are bustling with 80% more business.
"I'm sure we bring in an extra $2,000,000 in this time," said Nina Akin with the Tulare Chamber of Commerce
Republican Presidential Candidate Newt Gingrich is expected to visit the World Ag Expo around 2:00pm Tuesday
He's hoping to win over some financial support as well.