Inspirational events at stunning iconic castles across the UK and Europe.
Hosted at a selection of stunning and iconic castles across the UK, Ireland and France, the Castle Triathlon Series triathlon festival events all promise an inspirational and memorable race experience.
The Castle Triathlon Series offers a wealth of race experience to suit all levels. From the absolute beginners and children to the professional triathletes; enter as an individual or relay team; choose from 9 distance options (from kids, to starter sprint to full iron distance). Hosting the world's largest children's triathlon, you can compete as a family too and they are proud to partner with leading children’s charity, NSPCC.