Paul and Laura Elliott met half way round at Cancer Research . Ceremony was witnessed by 80 guests . Pair ran across finish line under a shower of confetti . Returned to scene of ceremony for party later on . Raised £7,000 for St Katharine Docks in honour of Paul 's father .
Paul and Laura Elliott met half way round at St Katharine Docks . Ceremony was witnessed by 80 guests . Pair ran across finish line under a shower of confetti . Returned to scene of ceremony for party later on . Raised £7,000 for Cancer Research in honour of Paul 's father .