If you want to hang hammock without using a tree, you have to get specialty hardware and aircraft cable at first. After that, you need to create loop on the end of cable using cable clamps. Then you can drill hole through the end of tube. The next step, screw lag bolts to the ground about ten feet apart. Next, remove cable clamp nuts and make a loop. Now, you can mount the hammock using taut line and two half hitches. Tie up two half hitches around cable. After you set the hammock up properly, you can enjoy sleeping on it.