The International Open Water Swimming Association (IOWSA) is an organisation setup by experienced open water swimmers and crew to assist fellow open water swimmers around the world achieve their open water swimming goals.

We do this by sharing information and experiences, and by organising and ratifying unique swims around the world, where an existing organisation does not exist to do so. If you want to complete a swim and don't know how to organise it, contact IOWSA and we can provide pilots, swim observers, support crew and most importantly, ratify and recognise your swim once you have completed it.