The Rottnest Channel Swim Association (RCSA) is a not-for-profit organisation which conducts the annual Rottnest Channel Swim. The 2025 event will be the 35th Rottnest Channel Swim. The Rottnest Channel Swim is an open water swimming event conducted in three categories: solo, duo (teams of two) and teams (teams of four). There is also an elite category of solo swimmers - Champions of the Channel. 

Come along and cheer on the swimmers as they set off from Cottesloe Beach! Champions of the Channel are the first to get going and leave at 5.45am. The last wave leaves the beach at 7.40am. For a full list of wave times visit https://rottnestchannelswim.com.au/wave-times/.