I didn't hit Koko Head Crater last time I was deployed to PACOM, and since I'm working back up to tackling Mt Olympus, Lanipo and Olomana...this was a short trek. But it was up. I mean UP. They call it nature's stair master......and for good reason. 30 minutes up and 20 down [mostly due to people in my way]. So, compared to others times I've seen...not too shabby. I did manage to jog down the last 1/3, once I got around the people crabbing their way down. By that time, my knees needed extended motion.