The Wisconsin Department of Natural Resources will only allow visits to Mazomanie Beach on weekends citing illicit sex in public, drug use and cruising occurring at the beach.
DNR officials said arrests for drug use and illicit sex at the beach on the Wisconsin River just north of Mazomanie spiked in 2011. In just nine days of surveillance, wardens arrested 42 people for illicit sex or drug possession, up from 14 in six days in 2007.
The new hours are effective immediately and will be in effect March 1 through Sept. 15 each year. The entire property is being closed, including the beach, islands immediately off the beach, and wooded areas Monday through Friday.
The beach will be open for public recreation Saturday and Sunday from 6 a.m. to 8 p.m. throughout the year, according to the DNR.
Property managers said new signage is being prepared and installed as quickly as possible.
"It is clear from our records that the majority of illicit activity is taking place on weekdays," said DNR Conservation Warden Nate Kroeplin. "Along with the closure we will add extra law enforcement presence."
People from states as far away as Florida have traveled to the beach for a sexual encounter, according to the DNR.