Zipline

Step 1: Supplys

1 strong pully
Climbing rope
Sling
Climbing carebiner
Tree
Anchor point

Step 2: Line

Tie the rope around a tree and other end to a anchor pole

Step 3: Hook

Tie a sling around the carebiner
Hook the pully on and then the carebiner

Step 4: Finish

Slide and have fun

PS be safe