Hersheypark is the largest theme park in PA, and consists of roller coasters, food, shopping, and other activities and games. Originally created by Milton S. Hershey as leisure grounds for employees of Hershey's Chocolate Factory, Hershey Park has become a very popular theme park complete with 15 thrilling roller coasters & a larger-than-life water park.
The Whitaker Center for Science and the Arts is located in Harrisburg, Pennsylvania. It present exhibits related to science and the performing arts, and also offers a digital cinema. It also sometimes has some specific events that can be fun.
If you are a beer person, this is just one of the breweries in the area. Open, airy brewery serves house made beers & craft sodas alongside burgers & other casual bites.
The Tanger Outlets in Hershey have some great shopping options with a very nice view of Hershey Park. As a bonus, there are many restaurants nearby to choose from.