Outdoor Navigation AR in a specific area

What’s the best way to achieve this?

My situation: I would like to create an AR navigation in a specific area. Example, showing waypoints from point A to point B in a shop lot area.

I looked everywhere for ways that suit my needs but either it isn’t what I want or there are limitations.

I am quite new to navigation myself so I hope I could get a few pointers here. Cheers.

I would recommend using Image Tracking with QR codes (or any other distinct images). This way you can place your images in the real world and match their location with virtual space.