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Recently however, I joined the group of cyclists traveling from Portobello in Edinburgh through to the city centre for the Pedal on Parliament event and they used the well known cycle route called the Innocent cycle path. So called because it uses what was the old Innocent railway and tunnel.
I have to say, I was pleasantly surprised.
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http://www.elidonald.co.uk/elionabike/the-new-cycle-to-work-the-innocent-cycle-path