A tree with a branch strong enough to support a person's weight Rope Twine (it must be as long as the distance from the branch to the ground) A counter-weight Plastic tubing (that fits on the rope)
Step 2: Find the spot
The first step to setting up the swing is finding a tree and a branch that can not only support your weight, but will also give you enough space to swing without hitting anything.
Step 3: Getting Started
Once you have found a suitable tree and branch its time to prepare the rope. On one end of the rope you will want to tie the rope to itself using a BUNTLINE HITCH (http://en.wikipedia.org/wiki/Buntline_hitch). Make sure that your knot is not too close to the end of the rope. To secure the knot and guarantee that it will not come undone tie of the end of the rope with a figure eight.
Step 4: The other end of the rope
Next you will want to attach the twine to your counter weight and the end of the rope without any knots.
Step 5: Ready to throw
Your goal for this step is to throw your counter-weight over the branch of your choosing. Once you have gotten the twine over the branch, grab the counter-weight. Pull on it to make the rope slowly rise to the branch.
Step 6: Securing the rope to the branch
Continue to pull on the twine until you have both ends of the rope in your hands. Take the weight and the twine off of the rope. Put the rubber tubing on the end and slide it up the rope a bit. Slip the end of the rope through the buntline hitch tied earlier and pull on the end. Pull until the hitch is all the way to the branch and tug on it to tighten the knot.
Step 7: Making a seat
Find a log small enough to sit on comfortably, while making sure that it is thick enough to support your weight. When you have accomplished this fasten your seat to the rope using a DOUBLE CONSTRICTOR KNOT (http://en.wikipedia.org/wiki/Double_constrictor_knot).