Hey, so in the past I've only hiked easy trails (class 1 or 2 i think), just for fun without crazy elevation. I want to actually plan my first real hiking trip. I'm fit, i have run a half marathon and still run occasionally. Since I am Greek I'm thinking of climbing Mount Olympus at Mytikas peak. I will probably be going with 2 great friends which are both great athletes. I've read about class 3 hikes but i really don't know if I'm gonna be able to complete one. What do you think?