Join Rockwood docent, David Teich, on an adventure into the past as we explore the Rockwood Hall area and its rich history dating back to prehistoric times. Former estate of William Rockefeller, this site boasts scenic views overlooking the Hudson, lush forests, and remnants of 19th century luxuries. Leashed dogs are welcome. Please wear sun protection, bring water to drink, and wear comfortable closed-toed shoes; the hike is about 2 miles roundtrip. Long pants tucked into your socks are recommended to prevent exposure to ticks and poison ivy. Cost: $3 + Eventbrite fees. Max: 40 people. Register Online.