Step 1: Getting the Necessary Materials
The setup that I personally use consists of the following
• Two anchors made from 15 feet of 1" webbing water-knotted together (more details on these are in the coming steps)
• Four climbing-grade carabiners and two climbing-grade rappel rings
• Two towels
• 50 feet of 1" webbing used for the main section of the line that is walked on
I use this setup because it is easy to construct/tear down/use in general. Also, it has a cheap initial cost (everything listed above can be bought for around $60; I reused old towels and did not include them in the cost estimate). Also, constructing a slackline using this setup eliminates the use of knots (except for the very first setup) and is therefore extremely beginner-friendly. On top of all that, this setup can be constructed in only 3-5 minutes.
The next step in the process is selecting a place to slackline.
Step 2: Where to Slackline
Once a spot to set up shop has been selected, it is now time to construct and place the anchors.
Step 3: Constructing Anchor Loops
Now, using one of the anchor loops just created, go around the tree once with it at a height about halfway up the thigh. Then, put a carabiner (carabiner 1) through it as shown in the photo. Allow the carabiner/anchor combo to dangle from the tree so the next few steps can be completed.
In the next step the main line will be connected to the anchor with a rappel ring.
Step 4: Connecting the Main Line to the First Anchor
Next, the second anchor loop needs to be placed.
Step 5: Setting the Second Anchor Loop
Now the final carabiner will be placed.
Step 6: Placing the Final Carabiner
It is now time to connect the main line to the second anchor loop.
Step 7: Connecting the Main Line to the Anchor Loop
Firstly, make sure the line is not twisted. Take the main line and go up through carabiner 3. Then go up through carabiner 4. From here, go down through carabiner 2. The line should now be between itself. Go down through carabiner 4 one last time and slip it underneath the line that was already in carabiner 4 as shown.
This will allow the line to be pulled tight, however before it can be pulled tight we must put in tree protection (towels).
Step 8: Protecting the Trees
To protect the bark on the trees, towels must be inserted between the anchors and the trees. While the line is loose, fold a towel over itself a couple of times and wedge it between the anchor and tree at both ends of the line.
Now the line is ready to be pulled tight.
Step 9: Tightening the Line
Congratulations, the line is all set up! Now it is time to learn how to walk.
Step 10: Slacklining for the First Time
To mount the line for the first time, stand close to one of the trees and face the middle of the line. Place the foot closest to the line on it; keeping your feet parallel to the line while walking is key. Also, pick a stationary point (usually the far tree) to stare at while on the line. From here, jump off of the ground and transfer the weight smoothly from the leg on the ground to the one on the line and stand up. First, try to balance on one foot. Then, balance on the other foot. Once balancing on both feet feels comfortable, proceed to start walking! THIS WILL TAKE SOME TIME. Patience and persistence are the keys to figuring it out.