Create a custom map on Google My Maps by following these steps: First, sign in to your Google account. Once logged in, click on the "My maps" button in the top right corner of the screen and select "Create a new map". Next, choose the type of map you want to create (e.g., street view, satellite view, terrain). Choose your location by clicking on a pin or entering a latitude and longitude coordinate. Customize your map as desired by adding markers, labels, and more.
View this tutorial in action on Google My Maps
https://www.google.com/maps/d/viewer?mid=1nQ7vp82SwYSDSil6ELIvJT7z5BqHVbBT