Updating location guides is easy!
The idea is for the location guides to be easily updated and edited by anyone. So anyone who is familiar with a place, or thinks they can improve the description is welcome to do so. Simply use the 'Update This Guide' or 'Create This Guide' link in the main section. Be sure you're in the location you're writing about, and try to keep it to unbiased facts.
If you are unsure and don't want to modify the main location guide, you can write a review or something too. Use the links to the left of the description.