This is a bonus cache for the Adventure Lab of the same name...
https://labs.geocaching.com/goto/7c947035-265e-41d1-a8db-7804a9ec1307

Each point in the Adventure Lab will give you the value for a letter of the alphabet.
This Bonus geocache can be found here...
S37° 48.ABC' E145° 14.DCE'
Geocache is on a retractable cord. Pull it down gently to access the cache, then ease it back up rather than just letting go of it. Thanks!