This cache should be a literal walk in the park, so long as you aren't afraid to stray from the path! Take a crack at trying to spot it!
Some adult assistance might be required, but this cache is filled with a bunch of fun little goodies for kids! If you having nothing else to add to it, try leaving a family-friendly doodle in the drawing pad. Plenty of writing utensils inside.
Watch for muggles in the church parking lot on the other side of the wall.