Dart 10k

The first, and arguably finest, 10k swim out there! 7/8 September 2024

Jess Rose

This iconic event belongs to Level Water, a charity that provides swimming lessons for children with disabilities, and is run by their event team Swim Collective.


The Dart 10k was the first, and is arguably the finest, 10k swim on the open water calendar, growing from 200 to 1600 swimmers a year over ten years. The course of the Dart 10K is a unique journey punctuated by landmarks such as the Cormorant Tree, the white rock, Sharpham boathouse and Bow Creek. It’s supported by volunteers from the local and swimming community, who make it one of the most special events in the swimming calendar. It’s a journey, not a race – there are fast swimmers, skins swimmers, swimming families (everyone 16 and over is welcome), disabled swimmers, newbies, butterfly swimmers, leisurely swimmers – whatever the level, there’s room for everyone in the river.

Jess Rose
Vivienne Rickman Poole
Dart 10k 2019 Outdoor Swimming Society JR (226) Jess Rose
Jess Rose
Toms Majors
Graham Wynne


Everyone is welcome, and very much encouraged, to join the swim. Swimmers aged 16 and 17 are welcome, but will need their parent or guardian to provide parental consent prior to the swim. 

The swim is assisted by river flow, but swimmers should still train to swim 10km. All swimmers will need to be acclimatised to outdoor swim temperatures by the day, and to have experience of chop and open water. 

2023 Event Film 


This event was created by Kate Rew from The OSS and passed on to Swim Collective in 2022. Swim Collective are the event arm of The OSS’s longstanding charity partner Level Water, who provide discounted swim lessons to children with disabilities. The OSS is proud to have been a part of Level Water raising over £250k in 2023 via the Swoosh, Boomerang and Dart10k. Please head to Swim Collective for ticket and event queries – we will also keep members informed via elsewhere and on social media – we hope to see you there!

All information about the 2024 events will be shared through event owners and managers Swim Collective. We will also keep OSS members informed through elsewhere and our social media channels. We look forward to seeing you there!