Offer an opportunity, with or without cost

Show them something they want: riches, power, glory. If you want, you can associate some cost with it too, of course.

Remember to lead with the fiction. You don’t say, “This area isn’t dangerous so you can make camp here, if you’re willing to take the time.” You make it a solid fictional thing and say, “Helferth’s blessings still hang around the shattered altar. It’s a nice safe spot, but the chanting from the ritual chamber is getting louder. What do you do?”