A New Zealander leading a team of Britons through Africa says they want to make the first complete ascent of the Nile River.
"Our goal is to accurately measure the length of the Nile to its longest source," Queenstown-based team co-leader Cam McLeay said.
"There's been a lot of debate over the last several hundred years about the source of the Nile."
Mr McLeay is a white water expert who has led worldwide rafting expeditions for the past 20 years. In 1996 he led the first successful descent of the rapids above the Murchison Falls in Uganda.
The five men and one woman started their journey this week at Rosetta near the city of Alexandria on Egypt's Mediterranean coast, and are on their way to Rwanda, where they believe the ultimate source of the Nile lies, the Egyptian Gazette newspaper reports.