This is a strange trail. It is quite smooth in parts and quite rocky in others. Has a few tough hills. Among trails in the area, this is probably the most intense. It is very hard to do this easy. In parts of Mamaroneck, it has boardwalking.
It is part of the Colonial Greenway and connects to Saxon Woods at its northern end. This is a bit tricky, though. Here’s a map. You want to do it this way because Old White Plains Road is winding if you turn left onto it and without a shoulder. So it’s dangerous. Bottom line: when you get to Old White Plains Road, turn right for a few meters and then turn into the trail and make your way around back to Old White Plains Road.