Castle on the Hudson | 64 followers on LinkedIn. The Castle on the Hudson sits majestically overlooking the Hudson River on sprawling acres of manicured gardens and grounds. With over 100 years of history, the Castle is undoubtedly a regal escape to the enchanted days of yesteryear. The Castle’s luxurious guestrooms, suites with wood burning fireplaces and impeccable service, continue to be a favorite among dignitaries and celebrities.