I remember my cousin and I at around 13 "packing" up the far side of the river in Kings Canyon NP. Our familys were camped in the regular campground. We took our 6 or 7 lb. rectangle bags, a canvas pup tent, our fishing gear, hunting knives and food. We had WWII army surplus Knapsacks with our sleeping bags straped on. We took turns carrying the tent in our arms. Our food consisted of a couple of cans of tuna and some french rolls with candy bars for desert. That was 40+ years ago and I still won't eat tuna from a can.