There are several entrances to the park. I have ridden form the main entrance several times if you follow the Cape Cod Rail trail heading west for about .15miles turn left at Ober rd. NOTE: The park has started to charge for parking in certain locations during the Summer. If this is the case, there's a free Cape Cod Rail Trail parking lot just a little ways down the road on the same side as the park.
You will have to piece together sections of green-way and double track to heads towards the section south of Ruth Pound where there is some great flowy single track. Any better entrance and the one I will use going forward is to park at the Freeman's Way ball field. If you park at the circle you will see a path tot eh left of the soccer field that leads right into a nice section of singletrack that you can follow to the east side of the park and around little cliff pond and Higgins pond.
Not much technical riding here but it is great for fast lopps.