KeyLime Cove was a tropical-themed indoor waterpark resort located in Gurnee, Illinois, near Six Flags Great America. The resort opened in 2008, offering guests a 65,000-square-foot waterpark, multiple dining options, an 8,000-square-foot arcade, and a spa. In 2012, TripAdvisor named KeyLime Cove the #1 Family Hotel in the U.S. and #2 worldwide. Despite its initial success, the resort closed in 2017 after being acquired by Great Wolf Resorts. Following extensive renovations, the property reopened in 2018 as Great Wolf Lodge, featuring an expanded 80,000-square-foot indoor waterpark and additional attractions.
Reference:
https://chicagowiki.blogspot.com/2018/08/key-lime-cove.html
https://news.cision.com/keylime-cove-indoor-waterpark-resort/r/keylime-cove-named-america-s--1-family-hotel-by-tripadvisor%2Cc9253752
https://en.wikipedia.org/wiki/Great_Wolf_Lodge_%28Gurnee%2C_Illinois%29