My son and I drove up from Leeds early afternoon on Friday 1 September with the intention to climb the 'Ben' by the CMD Arete on Saturday. Weather was fine and we set off from the North Face car park at 8.30am. Having looked previously at the Walk Highlands website we were intent on doing the stated 11 miles, but with the intention of making a little better progress on the time of ten hours (I have done it previously). We enjoyed the superb views and my son found the scrambling very enjoyable. We met the usual masses on top and had to navigate round a sea of fell runners who were taking part in the annual Ben Nevis run. We came down the tourist track and followed this to Lochan Meall an t'Suidhe, at the Head of the lochan we proceeded to follow the stream down to the forest to pick up the track down to the North Face Car Park. We arrived back at the car at 4.40pm, knackered but satisfied we had done the hard route. The aspect of the walk I was most surprised about, particularly when we arrived back at the car, was my son had had his GPS tracker on his phone switched on for the whole journey and it registered 14.1 miles travelled. This is quite an anomaly on the route details I downloaded from the Walk Highlands site, so I would appreciate any similar experiences in distance variations. My son wasn't happy about the extra mileage but it hasn't put him off walking - we're planning the next biggie!