Turkey Swamp is a beautiful piece of nature, smack dab in the middle of the most crowded state in the country. While the park can be crowded on summer holidays, if you arrive on a Saturday, early, expect a peaceful experience.
For the beginner or a family with young children, the green trail is an excellent place to start. End to end, it is roughly 40-45 minutes, depending on how many times you stop to admire the scenery. The walk is mostly flat, with just enough small hills to make it interesting. Expect some wet areas and a few place where you may need to assist the very young.
The rest of the park is packed full of trails ranging from very easy to moderately challenging. Other activities include overnight camping, fishing, and cabin rental for groups.