Welwyn Preserve, NY
A sprawling 204-acre preserve, Welwyn is the former estate of Harold Irving Pratt, heir to an oil fortune. The densely wooded preserve has four marked nature trails that provide access to a magnificent wooded stream valley, fresh water ponds and swamps, a coastal salt marsh, and a stretch of Long Island Sound shoreline. More than 100 species of birds and a variety of small native mammals, reptiles and amphibians inhabit the preserve's grounds. The preserve also plays host to the Holocaust Memorial & Educational Center, which offers exhibits and other educational programs.