Castlewood State Park is located in the state of Missouri, and it offers visitors a variety of outdoor activities and attractions. The park boasts hiking trails, picnic areas, and a river for swimming and fishing.

One of the main reasons to visit Castlewood State Park is its scenic beauty. The park is home to a variety of wildlife, including deer, foxes, and eagles, and it offers stunning views of the surrounding hills and valleys.

Some of the specific points of interest in the park include the Meramec River, which is popular for swimming and fishing, as well as the Castlewood Dam and Reservoir, which provide a glimpse into the area's history.

Interesting facts about the park include the fact that it was once home to a popular resort and amusement park, and that it was used as a filming location for several movies and TV shows, including Lassie and The Adventures of Tom Sawyer.

The best time of year to visit Castlewood State Park is during the spring and fall, when the weather is mild and the foliage is at its most colorful. However, the park is open year-round, and visitors can enjoy a variety of outdoor activities in every season.