They have a different definition of 'local'. There are the places they roam, the known roads and safe campsites. But it depends on the clan, as is true of most things.

"I didn't know you had a ship! I've only ever been on one- well, twice, I suppose. Leaving Ferelden to go to Kirkwall and then coming to the Inquisition. I had to be in the hold both times; I got horribly sick. But Isabela says it's because I was in the hold and not out on the deck, and I imagine she would know- do you think that's why?"