Members of the Galloway Mountain Rescue Team are going to spend 12 days cycling to the most southerly, westerly, northerly and easterly points of mainland Scotland.
Over 1,100 miles will be clocked up in the process and the volunteers will be raising money for the team's running costs and for a children's cancer charity.
Andy Burn reports:
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The family of Christian Pay, who died on Friday after suspected substance abuse at a festival, have paid tribute to the Millom teenager.
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Christian Pay's family say he was "loved by all" and had "the heart of a lion". The 18-year-old died after falling ill at the festival.