Belfast youngster Leo West Hurst gets into the Christmas spirit under water during one of his Water Babies classes.
The classes teach babies how to swim and promote water confidence, self-reliance and water safety.
Over recent years many babies – some as young as two days old – have been photographed as they go underwater in special swimming classes around Belfast.
The Water Babies programme is designed to make the most of babies' natural affinity with water.
Babies have natural reflexes that mean they instinctively hold their breath when submerged.