Dozens of colorful trailers touting everything from steak-on-a-stick to bottomless pina coladas were just arriving at the Fairgrounds Thursday.
There are a few changes this year, including night harness racing and the addition of a $2.3 million, partially enclosed equestrian ring.
The World Trotting Derby is scheduled for August 30 at noon, and auto racing takes place at the track throughout the run of the fair.
Rockers Lynyrd Skynyrd and country's Charlie Daniels Band were orginally scheduled to headline the grandstand, but Lynyrd Skynyrd has had to pull out because of one member's illness. They have been replaced on the bill by REO Speedwagon.
The fair has been on a winning streak in recent years. Last year's attendance topped 500,000 for the first time.