To apply, please download and complete the below application form. Employment applications are also available at the Grayslake Village Hall. Applicants must be at least 17 years of age for swim instructor and at least 16 years of age for lifeguard. Please submit all applications by March 22, 2017 to the Village of Grayslake – 10 S. Seymour Avenue – Grayslake, IL 60030.