Dutch Prince Willem-Alexander and his wife, Princess Maxima, got a rousing welcome from West Point cadets as they visited the U.S. Military Academy for the 400th anniversary of Henry Hudson's voyage.

The royal couple headed up the Hudson River after Secretary of State Hillary Rodham Clinton and Mayor Michael Bloomberg welcomed them to Manhattan.

Tuesday's festivities included NATO vessels, Dutch barges and a replica of Hudson's ship, the Half Moon. A Dutch naval ship offered a 21-gun salute.