People are cycling from John O'Groats to Land's End, with some attempting to break records or complete the challenge for charity. The journey appears to be a significant undertaking, with one octogenarian reportedly smashing the cycling challenge and others reflecting on the experience. The distance and route of the cycle ride vary, with some reports mentioning a 900-mile journey, while others reference a much longer distance of 6,042km, possibly referring to a different route across Europe.