A team of workers at the Santa Cruz County Fairgrounds erect a big top tent in advance of Caballero Brothers Circus, which opens Thursday at 7:30 p.m. The show runs until June 18. Showtimes are Thursday and Friday at 7:30 p.m., Saturday at 4:30 and 7:30 p.m., Sunday at 2, 4:30 and 7:30 p.m. Weekday shows are 7:30 p.m. Tickets are $40 for adults and $20 for children, but kids are free with a paid adult admission and a coupon, which are found at locations throughout Watsonville.