All of the items above, Only replace the day pack with backpacking pack.
Backpacking Pack - Adults can use 65-85 liters packs, Our boys use 30 and 55 liters pack.
Sleeping Bags - 20F-30F will do most of the year. Sometime we take additional lightweight Fleece blanket to keep us warm.
Stuff sack - For your sleeping bag and clothing.
Sleeping Pads - Foam (cheep) or inflatable.
Tent - Many stores sell Lightweight backpaking tents, make sure it is 3 seasons tent (Wind / rainproof). Also bring a .6 mil plastic sheet or tarp to protect the tent floor.
Rope - 30 feet 3/8 rope.
Food - Bring some extras.
Stove - Many options - Gas, Liquid fuel, Alcohol, Sterno gel.
Don't forget - Container for your fuel of choice. Wind screen for you stove.
Cook Pot - We use 1 gallon pot with lid.
Utensil - Plastic Spork.
Water treatment - Filter or chimicals (chlorine dioxide). Bring large portable container too.
Food Storage - In some areas you need bear bag or bear canister.
Personal Hygiene - Toothbrash, Tooth paste, Soap, Small towel,Baby wipes, Feminine Needs.
Flip flops or Water Shoes
Clothing - 2 pairs of socks, 2 underwear, Long sweet pants, Bathing suits, T - Shirt.
Backpacking Food Ideas
Here's a list of foods I've used on past trips. Some are obviously too heavy to take in large quantities, and some are meant for shorter trips or for cold weather trips because they are refrigerated foods, etc.
Breakfast Backpacking Foods
· MaltOMeal® (add raisins for more bulk)
· Rice (add raisins and dried milk)
· Granola (with dried milk)
· Fruit cocktail (small cans)
· Pancakes (need small pan,spatula, low-heat option on stove, lots of fuel, syrup in small container)
Lunch Backpacking Foods (many of these items are great for quick no-cook breakfasts)
· Bagels (cream cheese)
· Pita bread
· Logan Bread
· Granola bars
· Candy bars
· Dried fruit
· GORP (nuts, M&M's raisins, yogurt peanuts, crackers, dried fruit, etc)
· Pringles
· Crackers (the dense kinds at health food stores)
· Wheat Thins
· Cheeses (string cheese, blocks of mozarella, etc)
· Tuna (sold in pouches now)
· Lunch meat
Dinner Backpacking Foods
· Cup O Soup
· Cup Noodles/Ramen
· Lipton Rice or Noodles
· vegetable soup
· Potatoes and gravy (3-5 minute gravy mix)
· Potatoes and peas
· Couscous with dried veggies
· Ramen with dried veggies
· Spaghetti with dried veggies(use 6oz can of tomato paste to make sauce)
· Burritos(toritillas, refried beans, cheese, peppers, salsa, onions)
· Canned soups, etc (if you don't mind the weight)
Liquids
· Hot cocoa (add marshmallows)
· Apple cider
· Teas
· Powdered lemonade or Crystal Lite (masks bad-tasting and/or iodine-treated water)