Visiting Westerly from CA, my wife and I ran this trail on 5/26/16. We entered at the trailhead just above the boat launch and ran the loop in a clockwise direction. Enjoyed the scenery. Trail is good, with enough gentle elevation change, twists and turns, and varied surfaces to keep it interesting. Rocky in spots but still runnable, wet in spots. We are not fast runners and completed the loop in about 40 minutes, so it's not 5+ miles. It's more like 3+ miles.
Nice little hike. Wouldnt really rate it as moderate, great place to even go on a hike with young children. Did this one back in early April of 2015. Set my hammock up down by the boat launch between two of the piers and had a nice relaxing lunch.
Great place to bird watch as i ran into many people who were solely there to enjoy the sights of the featehred companions.
Really funny driving in as one of the houses is customized to look like a castle with a full suit of armor in view from one of the windows and gargoyles all around it.