The Children’s Museum at Saratoga is hosting its annual fundraiser, Big Truck Day, May 4 from 9 a.m. to 1 p.m., offering. “an exciting and educational experience for families while supporting children’s education initiatives.” In addition to the rigs, there will be truck tours, children’s activities, food vendors, and more. Proceeds from Big Truck Day will directly benefit the Children’s Museum’s educational programs.