The park is very pretty but it is not in a safe part of town. The police presence did not help shake the feeling. The park is somewhat small - but pretty. However, we were very uncomfortable even driving through the park.
Ellarslie mansion is in the center of the park. It is now a museum (no fee). The first floor has a rotating art display. The second floor has a small history of pottery in NJ. We ran through the museum because we did not feel safe leaving our car parked outside.