On the final day of campaigning, the Sky News correspondents who have followed party leaders to every corner of the UK reflect on the key moments.    From kayaking photo opportunities to people who bet against their own election chances – they tell Niall Paterson how the stories have cut through and the impact they could have on polling day.    Joining Niall are our political correspondents - Darren McCaffrey with the Conservatives, Serena Barker-Singh on the Labour bus, Matthew Thompson following the Liberal Democrats, Gurpreet Narwan from the Reform trail, and in Scotland Connor Gillies on the Scottish National Party.Producers: Rosie Gillott, Soila Apparicio Editor: Paul Stanworth   Promotions producer: David Chipakupaku