It's been fun to watch Nigels Live TGO Status page over the last few days.
You can see his intended route in RED and his actual route in BLUE.
The actual route is being reported hourly by his SPOT tracker device.
Given the harsh conditions for the first few days – it appears they skipped some hill climbing on day 2 and stayed low. I suspect this was their bad weather alternative route.
It's about 6pm UK time as I write and they appear to be well on their way to Fort Agustus. The weather forecast for today was clear and sunny (near freezing temps though!) so hopefully that raised their spirits a little from the brutal start.