Originally Posted by Turd Ferguson
What is "guying"?
You peg out the base of the tent and then you attach cord (guy lines) to various points on the tent and/or fly and peg those guy lines out putting tension on the tent. That will make the structure stronger and able to withstand bad weather. Most tents have quite a few places to attach guy lines called guy points. Use the few at the bottom edge of the fly under normal conditions and add more depending how heinous a storm you are expecting.