I think Zippetydude and Perry have provided very interesting details about what fitness looks and feels like and about the logistics of staying cool. Zippetydude and Perry epitomize for me the fitness and planning that befit a summer Skyline.
Being able to gain 2500 feet per hour, especially in the sun in the summer and for more than just one hour, provides a very vivid description of what a safe fitness level for a summer Skyline is like. By comparison, I am fit for most southern California hiking in mild temperatures, but not for a summer Skyline. I can do about 2000 feet per hour, for one hour, on a cool day in the shade. Maybe I could do more at that rate, but I have never tried. At the same time, I can feel whipped climbing 1000 feet at Cowles in San Diego at 85 degrees on a humid day in the sun, in about 30 minutes. It is easy for me to imagine dying on Skyline. When it comes, the heat exhaustion comes very fast.
Some people do seem to succeed hiking up Skyline in the summer who are not nearly as fit as Perry and Zippetydude. It amazes me. Even outside of summer, I am amazed by the people who climb Skyline who are neither fit nor logistically prepared for it. I am not thinking that they are stupid or fools or unethical or anything like that. I am only amazed that their bodies could do it.
