The last time we went to the Woodlawn Metro North station we noticed that there was a paved trail that started right before the entrance to the station. (According to the sign it's called Muskrat Cove--great name.) Last weekend we decided to see where it led. The answer is: not that far. But it takes you along the Bronx River, as well as the Bronx River Parkway, so there's a nice juxtaposition of nature and highway underpass. I'd go again.