Handover: John Roscoe from Dittons Skiff Club accepting the bottle from the lock keeper at Molesey Lock
A bottle is travelling more than 200 miles with the help of walkers, swimmers and rowers.
In a unique relay, a bottle filled with water from the Thames source, is passing through London and out to sea.
The bottle travelled from Shepperton Lock to Teddington Lock on August 30, courtesy of Dittons Skiff Club and Tamesis Sailing Club, who found time to pose for a photograph with the bottle at Molesey Lock.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here