The calf is the fleshy BACK part of the leg between the knee and the ankle. 'Shin' is the FRONT part of the same area. You can camp without backpacking and visa versa. If I am backpacking, it means that I am walking over some distance with a backpack. If I come back home the same day as I backpack, I have not camped. I can camp by driving to a camping spot, unfolding my tent and sleeping in it that night. I don't have to walk anywhere and so I do not have to backpack to camp. Naturally, I can do both.

Camping is simply spending the night outside of the usual residential structure, usually in a tent, a lean-to or under the stars. One can camp in the mountains, in a National Park or even in one's own backyard. Today the word is also used by those by pull camping trailers behind their vehicles and sleep in them at campgrounds. The word ''to backpack'' has a number of meanings. For those of us who like to hike and camp, it means carrying on your back a pack containing food and shelter, hiking AND camping. Simply carrying a pack while day-hiking, but not camping overnight, is not considered backpacking. The length of a backpacking trip is generally limited by the amount of food a person can carry. A backpacker is also someone who travels, as on a vacation, carrying his/her clothes in a backpack rather than in a suitcase. This may or may not involve camping.

Yep, The calf is a muscle, whereas the shin is a bone. Camping is normally when you go to one place and stay there for a few days in a tent, whereas backpacking is when you travel to different places on the same trip, and probably stay in each new place instead of staying in one place.

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