The biggest problem is getting enough water - and shade. He gave a little sardonic snort. Not problems I had much experience of in Scotland. Maybe fifty miles. A bit more in some places.
Chile is only about a hundred miles wide at the most.
And about two thousand miles long. There are tracks. Allan looked at Halpern for a long time before he replied. The man was still staring out across the water. It could be done but it would be much harder.