Tidefest is a River Thames event which took place for the first time in 2014 to highlight the recreational importance of the Thames to Londoners and to encourage people to enjoy the river. It took place at Strand-on-the-Green in Chiswick, Brentford, Barnes and other locations along the Thames Tideway, as part of the month long Totally Thames festival.

A wide range of activities were planned from 9am to 7pm on Sunday 11th September including a Stand Up Paddleboarding on the Thames. A mass paddle from Kew to Putney started at 2pm in aid of the charity Watertrek, as well as a foreshore clean-up.