"Best for: Families in search of calm waters Created by glaciers more than 10,000 years ago, Southeastern Wisconsin’s Elkhart Lake is known for its crystal clear water and sandy shores. The lakefront Osthoff Resort has countless ways to take advantage of those clear, tranquil waters. Beyond swimming, there’s kayaking, sailing, Hydro-biking, and more. During the summertime, kids ages four to 10 can enroll in the Pleasures Program for supervised fun, including ice cream making and scavenger hunts. Gather as a family for lawn games, a lake cruise tour, volleyball games, and beach bonfires. Book now: From $255 per night, tripadvisor.com" - Regan Stephens