Prince Harry wrapped up his time in the United States Wednesday with a visit to the Greenwich Polo Club in Connecticut, where he played in a charity polo match benefiting Sentabale, an organization that helps children and young adults in Lesotho, Africa.

(Photo credit: Mike Segar/Reuters)

Afterward, the prince, 28, attended a luncheon in his honor, where he reflected on his week in America.

"Thank you for a wonderful week," he said of his trip, which included stops in Colorado, New York, New Jersey and Washington, D.C. "I have witnessed the extraordinary generosity of the people of this great nation."

Prince Harry encouraged guests to visit Lesotho and to support the group's Mamohato Camps - a program that supports children living with HIV.

"We do believe that the Mamohato Camps are a real game-changer," he said. "Not least because of the extraordinary resilience and courage of children everywhere, whether in Harlem, Lesotho or within military families."