Fish Lake Beach partners with Six Flags Great America, Gurnee! Fish Lake Beach campers reap the benefits of our prime location, namely, great places for relaxing, dining and entertainment near the resort. Among the most popular is Six Flags Great America. This season we will have one and two day tickets for sale in the General Store or as many seasonal campers know it, the Lunch Room. When your’e here, stop by for that soft serve ice cream cone and pick up your tickets and treat the family. Easy peasy!