Win Gators, win tonight.” Crystal Lake South High School, often referred to as "South" or "CLS," is one of three high schools in Crystal Lake, Illinois, and currently has a body of roughly 1916 students.

After the community's school split, the South Gators and Central Tigers became rivals in the Fox Valley Conference.

Though recently, focus of rivalry has primarily shifted to the Cary-Grove High School Trojans and the Prairie Ridge Wolves due to vastly increased competition in football games between the two schools.

The city of Crystal Lake has grown rapidly since South first opened it doors.

[5] From this, arose a contest; graduates, current students, and the community got to design and enter logo's to be voted upon for the new one.