This article explains how to open and use the Snap Map in Snapchat 9.35. 5 and later. Instructions apply to the app, not the web version.
To get to Snap Map on the Snapchat app for iOS and Android, tap the Snap Map button in the action bar. Your location will appear, but you can also tap Friends to see locations your friends have shared. Tap the Settings button (gear icon) to manage your Snap Map settings.
Tap a friend’s photo in the Friends tab. If they’ve shared their location, a preview image will appear under their name on their profile. Tap it to open their Snap Map.
You can also open Snap Map in a web browser by going to map.snapchat.com. This is a public version with no logins or usernames.