Themba Hadebe, Associated Press
Prince Harry Prince Harry in Lesotho.

Prince Harry worked up a sweat Tuesday as he carted wheelbarrows of wet cement, filled a ditch and hammered nails.

The young royal was helping refurbish a school for mentally and physically disabled children under the auspices of a charity he founded in the impoverished African kingdom of Lesotho in memory of his late mother.

Asked if Princess Diana, known for her charity work around the world, would be proud, he said simply: "I hope so."

Harry and his regiment from the Household Cavalry were helping put in wheelchair access, build a new kitchen and lay fencing around the Thuso Center.

"I love physical labor," he said at the start of a three-week visit.