Day 5: Iztaccihuatl, 17,160 ftEric, Mathayus, Matt(@sierrasplendor) and I woke up at midnight, packed our bags, and started our 12-hour 4.5k feet gain roundtrip journey to the top of Itza and back. I was in good spirits and strength, minus the fact I slept for only 1 hour due to some noisey neighbors.Mathayus had stomach issues the whole trip due to some bad flan he ate in Puebla, but made it to the top with the rest of us. I was truly impressed with his resolve.Matt was a MACHINE, leading the charge the whole way. I'm blown away by his strength, let alone at 52.Item #7 shows how slowly you move at 17,000 ft. It shows Eric slowly walking towards the summit. It's comical how slow it is This is full speed any of us can go, mind you. The oxygen is just so low that you really can't go faster without your heart racing and your breathing turning exasperated. Your muscles feel fine, but your cardiovascular system is working overtime to provide oxygen. It's truly a bizarre sensation.This marks peak 2 of 9 for me. Thursday we tackle Pico, at 18k feet, the highest in Mexico.