You update the address of your guide from the Guide Details tab (click on your guide name from the Guides page). Then scroll down to the “Guide/Property Address & Location” section and use the “Edit” button.
In here you can update the address of your guide. Changes to your guide address will update the map location, the time zone and weather or tide times widget location for your guide.
If the Google Map pin location isn’t showing correctly for your address then you can manually move the home pin, see this article for more details.