[Grace Themes]

Hi,

To change the Google map and other contact information
Go to the Appearance -> Theme Options -> Footer -> Google Map -> Add iframe src URL only

Please check the link to get Google Map Iframe code
https://en.support.wordpress.com/google-maps/

To display contact page with Google map and contact information
1. Create a Contact page from Page -> Add New
2. Add title and set “Contact Us” Page Template from Page Attribute panel

Regards
Grace Themes