The swim has raised over £175,000 for various local charities and organisations since it began in 1965.
This year our two headlines charities are 2 Wish and Sir Gareth Edwards Cancer Charity.
Is there a cause close to your heart? Whether you're swimming in memory of someone special or to support a charity that has made a difference in your life, now's the time to make it count!
With JustGiving, you can easily set up a personal fundraising page for a charity of your choice. It only takes a few minutes to fill in your details, and then you're ready to share your page far and wide. Every splash you make will help support the causes that mean the most to you!