The Bantham Swoosh

The Bantham Swoosh is a 6km swim in a shallow, sandy-bottomed estuary. It's exciting, invigorating, beautiful and fun.

2019 Ticket release to be announced in OSS newsletter

The OSS Dart10k is celebrating our tenth year in 2019 and we look forward to welcoming swimmers for our fabulous shared journey from Totnes to Dittisham on 14-15th September 2019.


OSS Events 2019: come and join us for a celebration of swimming

2019 Hurly Burly ticket release to be announced in OSS newsletter

28 September 2019: the fastest 10k you'll find: the Hurly Burly, an autumn 10k on the Mawddach in North Wales - with a run and a run-swim option.


Mountains, cold water, films and stories of adventure: join us at Kendal Mountain Festival 15 – 18 November 2018

Castle to Castle Teifi Swim

An idyllic swim through clear river water and the salty estuary of the River Teifi.

UK Open Water Event Calendar

The OSS has teamed up with FINDARACE to bring you their comprehensive event finder to our site. Enter search terms in the box below to get started, or scroll through the full calendar.