Although today (with maximum temperatures of "only" around 33 degrees Celsius (~91.4 degrees Fahrenheit) was not the hottest day that I've been out hiking, it may well be among the most humid. The air felt thick and muggy this afternoon, and it was so very easy to get drenched with sweat. More than incidentally, I'm one of those people who sweats so much that I'd be a great test subject for sunscreen that doesn't get washed off easily by one's own perspiration. So on days like this, I end up feeling like it's no use putting any of that stuff on me!