Members of the Ogwen Valley Mountain Rescue team will take part in a New Year's Day swim to help raise money for new equipment.
The rescuers will take a dip in the Snowdonia lake, Llyn Ogwen.
They're hoping to raise enough money to buy an industrial-strength dehumidifier to dry out their equipment after rescues,
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It will be a frosty start with a risk of ice. The rest of the day will be dry with variable cloud and sunny spells.