by FatCanyoner » Thu 16 May, 2013 11:42 am
As a canyoner who by default spends the day with wet feet, I'm probably more deliberate with drying them out (hence I've never had feet that looked like that, even after long wet walks / canyoning trips.
My technique is simple. Pretty much as soon as I set up camp my shoes come off. My feet dry around the camp fire, and stay dry at night (sleeping barefoot, or when cold, putting a spare set of dry woollen socks on). In the morning the dry socks are packed away for the next night and the wet shoes / socks go back on (it's the worst part of the day!)
As I said, I'll go 12 hours or more with wet feet at times and I've never had them look like that, so perhaps his feet respond in a worse way to the wet (but they do look to me like they didn't get a chance to dry out at all during the whole trip).
On a side note, (and again I say this as someone who has lost almost every toenail at some point), I'd suggest he should have trimmed those nails before the walk. They usually go black from impacting the front / top of the shoe repeatedly. It probably happens quicker when wet, but the shorter the nails (and less your feet slide forward in your shoes) the less that should happen.