By the help of WP Google map plugin you can easily display map in frontend using shortcode. When you create a map a shortcode automatically generate in manage map page. Use this shortcode to display map in frontend.

Display Map in frontend

Step 1Go to Manage Maps page , a window will appear that contains all map that you created.
Step 2Copy the shortcode of your map.

Shortcode

Step 3 Put the shortcode of the map on page or post where you want to display google maps.
Shortcode Paste

Step 4Click “Publish” or “Update” button. Below is the map you’ll create using this tutorial.

Frontend Map

Video Tutorial