Let me help

My daughter, Maria and grandson, John, came on a lovely visit bringing their crazy young dog, Finn. I took them on one of my local walks and mentioned that there is a geocache which I haven't been able to collect yet due to there always being quite a few non-cachers (muggles) around. I pointed out where it should be and Maria, using the app on her phone zeroed in and grabbed it for both of us.