Secondary school pupils took to the white water rapids of a canoe slalom course.
Children from Park High School were among 500 from across London taking part in the fourth annual Lee Valley White Water Centre Schools Festival.
The course is the one at which Team GB took gold and silver in the London 2012 Olympic Games.
Organisers of the schools festival say they hope the event will build on the legacy of the 2012 games.
On the day pupils took part in kayaking on the lake, a cycling challenge, mini tennis sessions, football sessions as well as team building activities such as the 'water wipeout'.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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