My plan is that in January I just exercise. Cardio, strength, yoga, whatever. I just have to move and stretch and work up a sweat however I can. In February I am going to ramp all that up and maybe try to add some distance walks in there if the weather is nice enough. In March the weather should be good enough that I can start the hills. Luckily for me, I live in a place where I can get to the mountains easily, and if I don’t want to actually get in the mud and dirt of the mountain trails, I can still walk around the neighborhoods that are built on the mountain sides. I’ve walked some of the streets before and they can be steep. And in April, I ramp up the inclines and add more distance. Then by the time we leave for Peru, if I have a hard time with the hike, it won’t be for lack of trying.