There are many activities to do in and around the lake. Around the lake, you can hike on the trails, play volleyball, play on the swingsets, and picnic. For large picnics and gatherings, you can reserve pavilions. Otherwise, the pavilions are open to the anyone.
In the water, there are areas for swimming, which are open from Memorial Day to Labor Day. You can also go boating from any of the ten boat launching areas. For those without boats, canoes and paddle boats are available to rent. You can also go fishing in certain areas of the park.
(For information about designated areas for specific activities, park regulations and restrictions, and other information, please visit the website I've provided.)
Moraine State Park is a nice place to go for those who enjoy the outdoors on a more leisurely level. Most of the trails are great for those who like to walk, talk, and look at nature without getting tired from the hike. There are more strenuous trails, but most of them are called "moderate hiking", and the difficulty of each trail is largely based on the length of the trail. I took the Sunken Garden Trail, and it was an easy walk that simply took time to complete.
Moraine State Park is also conveniently located very close to McConnells Mill State Park, which is home to the covered brigdes that Pennsylvania is so famous for!
(For information about handicap accessability, special events, or anything else, feel free to visit the website I've provided)
The park is located near the crossroads of I-79 and I-80. It is bisected by PA 422 running east/west and PA Route 528 running north/south.
To access the South Shore Recreation Area, take the South Shore Exit off of PA 422.
To access the North Shore from PA 422 East, take the North Shore Exit. There is no access to the North Shore from PA 422 headed east from I-79. Take the South Shore Exit, get onto PA 422 West and take the North Shore Exit.