A Wet and Wild Family Adventure! KeyLime Cove, an exciting tropical inspired indoor waterpark resort in Gurnee, Illlinois. Come on in and let the funshine of paradise surround you all year! Chicago's largest, family friendly, water resort with excitement for all ages. Your kids can splash the day away at our Lost Paradise Waterpark while you rejuvenate at the Paradise Mist Spa. Take a stroll through island-inspired retail shops for the perfect memento, then stop for an afternoon latte at Island Temptations. Gather the crew for dinner at the most kid-friendly restaurants in Chicagoland. Challenge the kids to virtual, interactive fun at the Riptide Reef Arcade before settling down in your luxurious stateroom or suite. Not tired? Grab a dance and a drink at The Crazy Toucan – that’ll ensure a good night’s rest. Then, wake up tomorrow and dream up another day – remember, when you’re at KeyLime Cove, you’re on KeyLime time!