Three years later, in 1976, there was a British expedition of seven kayakers under the leadership of Mike Jones. They used 4 metres long fiberglass slalom-style kayaks specially designed by Pyranha Canoes with extra buyonancy and reinforcement. The expedition is notable for taking place in September to avoid ice and when the water was high to set new altitude record. They paddled at approximately 5300 mamsl on one of the lakes at the Khumbu Glacier. But the high water flow had its downside — many parts were too dangerous and had to be omitted; the result was that just two boats out of eleven survived to the end at the confluence with Sun Kosi. It is unclear which parts of the river were skipped, but the descent is generally considered incomplete. The next year, HTV documentary movie Dudh Kosi: Relentless River of Everest has been released which is a source of common misconception that this was the first trip on the river.