A water skier sends the river spaying into the air at last year's Take to the Tees festival
A festival of aquatic activities is returning to Stockton from 21 until 29 August 2010.
Take to the Tees gives people the chance to try out water sports and learn more about the history of the river.
There will also be a Triathalon and a River Rat Race where people can run, paddle and kayak across a 10k course.
Participants will also get the chance to walk the plank and climb the Newport Bridge during the event.
There will also be activities to help disabled people get on to the water and for new mums to get fit after giving birth.
BBC Tees will be there at the event, giving you the chance to have a go at being a TV presenter with their workshops.