Today the blizzards returned and for the first time I could not even see the towering tres hermanos rocks from the base. Usually it is at least visible behind the grey snow haze but today it was completely obscured. Not a good day for fieldwork. But after yesterday’s efforts we were quite thankful for an excuse for a lie in and catch up on sleep to recharge our batteries, though Steve ventured through waist high snow drift to get to the gym just a few buildings away which sounded like an expedition in itself.