Johannesburg - Britain's Princes William, 26, and Harry, 24, started a 1,700-kilometre rally in aid of charity through South Africa Saturday.
The two set off from Port Edward on the east coast of the country with some 80 others in the early morning sunshine on the eight-day Enduro Africa 2008 trek.
Each participant paid 1,500 pounds (2,600 dollars) to take part in the event, raising 300,000 pounds for charities such as Harry's Sentebale (don't forget me), founded in 2006, which helps AIDS orphans in the mountainous kingdom of Lesotho.