We visited this campsite in mid March. The sites are a little close together, but it was quiet. There is biking and hiking directly from the campsite.  the bathrooms and showers are very clean, and there is a laundry room which we did not use.  this campground is really close to Shenandoah national park. We chose to stay here instead because there are water and electric hook ups and a dump site on premise. 
Turkey Swamp is a county park located in Monmouth County, NJ. This beautiful park has some of the nicest campsites in a wooded area. Biking and hiking trails are located in the park so no need to travel beyond the park. If you want to travel, Freehold, NJ is nearby offering restaurants, breweries, shopping, and more.
We enjoyed a four day stay. If you don’t need a full hook up, you can stay closer to the lake, which we will do next time. The campground is clean, has good amenities, and the people who own it are very nice and helpful. Our site was also very level.