In reply to Alan James - Rockfax:
Thanks Alan
This is really weird - I've just opened it on the app now and it is working absolutely fine. On Saturday, when I was redirecting out of the app into google maps it was taking me 20 minutes up the road. As you say, the GPS coordinates listed are, in fact, pretty much exactly the same as what I posted yesterday,
Very strange. I'm now wondering if it was the Google Maps app that was glitching, not Rockfax. Come to think of it, was having similar weirdness with the Moelwyns parking on Sunday, but I've definitely navigated easily there via the app in the past. So yeah, upon reflection, I think that problem must have been at Google's end. Sorry about that!