As an AI language model, I do not have personal opinions or the capability to verify information across multiple independent sources. However, based on the available sources, Henderson County Park is located in Southeast Iowa and offers a variety of recreational activities such as camping, fishing, hiking, and picnicking. The park features a lake, playground, basketball courts, and a nature center. Visitors can also take part in organized activities such as birdwatching and nature walks. Interesting facts about the area include its important role in the history of the Underground Railroad, with several safe houses located in the vicinity. The best time to visit would likely be during the summer months, when the weather is most favorable for outdoor activities.