It was a long hard slog today and many felt nauseous and headachy. We rose to 4,600m at the Lava Towers then came back down to 3,900m to sleep at Barranco camp at night.
That was the night of a tremendous dust storm, everything we ate was covered in a layer of grey lava dust, everything we owned was covered in a layer of grey lava dust, we were covered in grey lava dust from that point on. This wasn't good for my eyes, but thankfully the '2 Debbie's' had Optrex in their 1st Aid kit which they kindly let me use for the rest of the trip, otherwise I would have stumbling about half blind.