Pickwick Landing State Park is located in the state of Tennessee, not Illinois. The park is situated on the banks of the Tennessee River and offers visitors a variety of outdoor activities, including boating, fishing, hiking, and golfing.

Some of the main attractions in the park include the Pickwick Belle Riverboat, the Pickwick Landing Dam, and the Pickwick Landing Marina. Visitors can also explore the park's numerous hiking trails, including the 2.5-mile Woodland Trail and the 1.5-mile Lakeview Trail.

In addition to its outdoor activities, Pickwick Landing State Park is home to a number of historical sites and landmarks. These include the Tennessee River Museum, which features exhibits on the history and culture of the region, and the Shiloh National Military Park, which commemorates the 1862 Civil War battle of the same name.

The best time of year to visit Pickwick Landing State Park is from late spring to early fall, when the weather is warm and sunny. However, visitors should be aware that the park can get crowded during peak season, so it's important to plan ahead and make reservations early.

Overall, Pickwick Landing State Park offers something for everyone, from outdoor enthusiasts to history buffs. With its natural beauty, rich cultural heritage, and diverse range of activities, it's a great destination for anyone looking to experience the best of Tennessee.