The Acer Iconia A510 does have GPS so you can use Google Map OOB. It should have actually come pre-installed, But if it wasnt you can get it free from Google Play.
As far as downloading, most hotels now have free WiFi, and McDonald's does too. Just stop in a McDonald's and snag maps real quick and you should be good to go
Here is the full spec sheet
Acer Iconia Tab A510
I hope i answers your question