If you are making a weekend of it here are a few places to checkout! I also suggest doing a quick trip advisor search. There are plenty of Shopping, Beaches, Restaurants and Park Recreation available.
Lemon Lake County Park
6322 West 133rd Avenue, Crown Point, IN 46307, (219) 663-7627
Great for Hiking and Bike Trails
The Shrine of Christ's Passion
10630 Wicker Avenue, Saint John, IN 46373, (219) 365-6010
Very spiritual place to visit
Crown Antique Mall Inc.
545 East 110th Avenue, Crown Point, IN 46307, (219) 779-9767