View someone’s location in Messages on Mac
You can share your location in the Messages and Find My apps on a Mac, iOS device, or iPadOS device. When someone shares their location, you can see it on a map in Messages.
Note: You and the other person need to be signed in to iCloud with your Apple ID to share locations.
In the Messages app on your Mac, select a conversation.
Click the Details button in the top-right corner of the conversation.
A map appears when a person shares their location; you may need to scroll to see it.
Click the pin on the map to open the Maps app and check traffic conditions, transit information, and other details.