This is not for the faint-hearted because in our Winter Well-being series, we've joined a group who go Open water swimming - all year round.
They take the plunge in lakes and oceans no matter what the weather.
So who better to join in, than our own action man - Derek Johnson:
A lake on a chilly morning.
A dozen hardy souls are briefed about taking a dip.
The session is being supervised by TriSwim- an open water swimming community.
Laura Ansell, Swimming Coach- TriSwim:
Lifeguards are on hand because while the ideal temperature for beginners is 11 degrees, the lake is a bone-numbing 3 degrees!
Even experienced swimmers here are told they must not spend more than more than 15 minutes out there!
Lake and sea swimming season is normally May-October.
Although more people are making a splash all-year round.
Wading in even in wetsuits can bring a tear to the eye.
Plan it so you can dry off and warm up quickly afterwards.
Look forward to a hot drink as you weigh up the wisdom of your choices.
BENEFITS OF COLD WATER SWIMMING:
- When immersed in cold water, your immune system learns to fight back to prevent colds
- Makes us feel happy- help prevent anxiety and depression.
- Being outdoors is good for the soul
Winter swimming is not for the faint hearted, but if you're organised and ready then take a breath...
and come on in...