It's a huge trail system. Can be as short or as lomg as you would like
If you are looking to go mountain biking there are trails for everyone. And there are many miles. You may want to park at the Adams street parking lot in Holliston do to the construction at the cell tower entrance. If you are looking for the paved trail. You can park ether on Cedar street (Rt 85) on the border of Milford and Hopkinton. Or at Dilla st. This paved trail also has many miles.
We spent about 3-4 hours there and i feel we got on most of the trails.
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