Fullscreen Maps are supported on Chrome, Firefox, Safari, and Internet Explorer. To launch fullscreen mode, click the full-screen icon at the top right of the map. In addition to being able to explore an activity in great detail with the fullscreen map, we've also included the activity's elevation profile, so you can easily interact with the route. To exit fullscreen mode, click the fullscreen map icon at the top right of the map. In Chrome and Firefox, you can also hit the ESC key to exit fullscreen mode.