OSS Nomad: Wild Swim Safety Course

The OSS Nomad Wild Swim Safety Courses are new this spring; day courses to help provide the essential (but elusive) knowledge needed to plan wild swims somewhere new. Developed by training expert Jim Whittaker, these courses are designed for swimmers wanting to understand coastal and inland water, and build confidence and ability to plan swim with friends somewhere new.


OSS Events 2018: "Magic". "World class". "Fantastically well-organised".



Mountains, cold water, film makers and adventure stories told by their authors: who's coming to the Kendal Mountain Film Festival on 16-19 November?

The Hurly Burly

29th September 2018: 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.

The Bantham Swoosh

Sold Out. 14th July 2018. The Bantham Swoosh is a 6km swim in a shallow, sandy-bottomed estuary. It's exciting, invigorating, beautiful and fun.

Dart 10k

Sold out. The OSS Dart10k is in our ninth year and we look forward to welcoming swimmers for our fabulous shared journey from Totnes to Dittisham on 15/16th September 2018.

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.