We have just spoken with Olly via satphone. They have made the decision to not push on for the mainland as the weather window is too tight and they are exhausted. They are heading for the small island of North Rona - this is the most remote island of the British Isles and has a population of 0 - you may have to zoom in on the tracker a lot, it is very small and occasionally not even included on maps.
They are completely on their own, no support boat and no team on North Rona to greet them in. They have food, a tent and some water so when they get there in around 5 - 7 hours time they will rest, eat and then review the weather tomorrow morning.
We'll keep you informed on the boys progress here, and across social channels. We hope to speak to them tomorrow morning at some point.