Yes, you can download map data for offline use, though Google Maps handles this by downloading rather than specific turn-by-step direction files . By saving an area, you can still search for destinations and get driving directions within that region even without an internet connection. How to Download Maps for Offline Use
You can save a specific city or a custom area directly to your device. It is recommended to do this over Wi-Fi to save mobile data. How can I save an entire route offline? - Google Help is there a way to download directions on google maps