How do you train for a hike?

Last week's plan went sort of to plan - except I didn't do Saturdays or Sunday's planned workouts because I'd had about 6 hrs sleep thanks to work Saturday, and Sunday...worked again, plus well, my shins are still quite tender so thought I'd have another day. I'm also really bad if I have one day off, I find it easier to take another :(. But not to worry, will make up for it tomorrow!! Going to start "training" for the hike, not really sure how since I've never really trained for a hike, but I'm thinking 5km walk every day, with maybe a longer walk on weekends... plus my normal running training??? Will somehow make it so I'm not tired for Sunday's race. SO... here's my draft plan for this week....

Sunday (today): rest.

Monday: 5km (3.1m) run + 5km walk + 100 pushups program

Tuesday: BodyPump

Wednesday: 5km run + 5km walk (hills) + 100 pushups program

Thursday: 5km walk

Friday: swim + 100 pushups program

Saturday: rest / maybe yoga?

Sunday: Race, 12km (7.5 m) :D

I am feeling a little restless at the moment actually, so I might end up getting on the exercise bike for a bit tonight.

Weekly Plan

o yesterday... or whenever it was.. I posted a weekly recap of my workouts, so this time I might post a plan in a hope to stick to it, haha (including yesterdays)

Monday: Boot Camp, 100 pushups program (did 79 - oh they hurt)

Tuesday: Did a 3km run, not feeling too well.

Wednesday: Boot camp, 100 pushups program

Thursday 5km walk, maybe something strength related in the afternoon.

Friday: Last Boot Camp!!, 100 pushups program

Saturday: swim 50 - 100 laps

Sunday: long run. again, depends how the shins feel.

I'm kinda reluctant to give myself KM's at the moment because of the way my shins are feeling. I did a bit of a run to my car last night when it was raining at uni and they hurt a bit, so we'll see how we go. I was going to cross-train today with a gym class but I've missed it by sleeping in :/

Oh, and I gained .7 kg this week. Why does this keep happening? You can't gain this much muscle every week. I must eat too much, but I'm reluctant to restrict myself...