Courtesy of Pádraig Mallon, Infinity Channel Swimming and Piloting Services.

Pádraig Mallon of the Infinity Channel Swimming and Piloting Services uses three separate stopwatches and three separate water thermometers to measure the time and water temperature on solo and relay crossings of the North Channel and the Dál Riata Channel.

The average time is taken on the stopwatches and all the thermometers are calibrated, but they often give slightly different readings.

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