The Pied Piper Junior Aquathlon & Triathlon is a fun sporting challenge which raises funds for two charities and is designed for children aged 8 to 16. The aquathlon comprises a swim in the heated main pool of the lido followed by a run around Sandford Park, whilst the Triathlon includes a cycle in the park inbetween the swim and run.

The event is managed in partnership with Sandford Lido Ltd (Registered charity #1052203) and Pied Piper Appeal (Registered charity #1011611). Age categories: Age category shall be determined by age at 31 December in the year of competition in line with British Triathlon rules. Examples of age category a) A child who is currently 7 but turns 8 between the event and December is able to compete in Tristar Start group.b) A child who is 10 but turns 11 between the event and December would compete in Tristar 2 group.