Before reaching their destination, the teams will cross mountains, frozen rivers and forests before hitting the wind-pummeled coast.

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The Broads Authority has urged people not to go boating or set foot on frozen rivers and broads.

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Ice as collected as large blocks sawn out of frozen lakes or rivers during the winter and stored in ice houses for use in the summer.

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Leicestershire Fire and Rescue Service warned people with dogs or children to be careful near frozen lakes, ponds and rivers.

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In a number of areas the ground remains frozen beneath the surface, which means excess water will run into rivers instead of being absorbed by the soil.

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Similarly, a heatwave which leads to swimming in rivers and drownings, a cold front which leads to a larger than usual number of half frozen people.

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