Fantastic park for the area - Preston Park is tucked into a residential area, on the former grounds of Preston Laboratories, some sort of research center. Seems like the land was given to the township after the death of the Preston family.
The park itself has parking, security staff, several trails and picnic areas, and more. Their website says that tours are available, but I just went by on a weekend morning to get in a 5K trot around the park. There are clearly marked trails, three specifically for walking dogs, and the few pets and their owners I encountered were friendly and thoughtful.
The humid weather here makes it great for various flowers and plants to thrive, but also results in some marshy areas, so wear proper footwear and bring your water. Fountains and restroom facilities are also available by the parking lot, along with maps. This was a great quiet morning well spent in nature. read more