Offshore in engineless boats like Onawind Blue you kind of depend on the wind. You whistle for it, you pray for it and when you’ve got it you pray for it to hold. When if fails your heart sinks. It might seem futile to take up the oars when you’re still forty miles from your destination. But waiting could mean just sitting, drifting with the current for a day or two. So you row. And, fun as rowing is, you do eventually get tired. If you go beyond tired you get knackered. When you’re knackered and the wind still hasn’t appeared you somehow have to continue rowing. Sometime later you find that you’re absolutely knackered.