Get R.E.A.L. with QR Codes

So, I've never personally seen this done, but that doesn't mean it hasn't been done...I had the idea today that you could generate QR Codes to create a scavenger hunt for your students! It could be an activity at a family engagement event at school or just away to get your students to review for a test. Each code could contain a question and/or answer that would lead to a new location with a new code.