What Do All These Numbers Mean? Mystery Cache

This is a pretty easy puzzle cache. Loads of parking for cars, carts, and bikes. 
No geocaching is allowed at night in The Villages

Published coordinates are not where the cache site is. When you go to ground zero you might have to widen your search as satellite reception is rather poor with the overhanging trees..

The coordinates are:
N 28 55.abc
W 081 57.xyz

abc  =

-38.045261,142.326154
41.831411,-71.398889
41.823296,-71.399653
41.823296,-71.399653
-----
-37.801918,143.933687
28.867924,-81.960075
-37.840074,144.893757
-37.840074,144.893757
-----
28.962392,-81.958517
28.867924,-81.960075
-37.840074,144.893757
-37.801918,143.933687
-37.840284,147.83268
41.823628,-71.400944
-----
-37.893368,145.143663
-37.840284,147.83268
28.944419,-82.010513
41.827325,-71.398862
-38.207491,145.387305
-----
28.944419,-82.010513
-37.840284,147.83268
28.944419,-82.010513
-38.045261,142.326154
28.914980,-81.942577
-----
-37.801918,143.933687
41.831411,-71.398889
41.827325,-71.398862
28.867924,-81.960075

You can validate your puzzle solution with certitude.