Hi Mark,
Paul Churchley here... we met when you took delivery of your first Leaf... I was the one that wasn't from the media or Nissan!!!
Do you mean CHAdeMo 50KW or a 16A?
Which St Ives?
As far as 50KW goes you are pretty much out of luck... If you mean the one in Cornwall then the nearest fast charger would be Exeter I expect - 108 miles to the east. If you mean Cambridgeshire then the nearest I can find is Smiths of Peterborough - 30 miles north, or Glyn Hopkins, Waltham Abbey where we met - 60 miles to the south.
As far as 16A goes... David has mentioned the POLAR at the Premier Inn in Cornwall but if you mean Cambridgeshire then there is a Source East 32A with type 2 socket at Cambridge Science Park, Cambridge or at Huntingdon Racecourse, or at Wyboston Lakes. Take your pick
Does that help?
Take a look at Zap-Map.co.uk or openchargemap.co.uk which might help also.
I hope you are still enjoying your car?