Season 3 of the Whaler Series. Part of the Whaler Right Geoart.

Cache is not at the posted Coords:

Solve for ABC to find where it is:

The sum of ABC and ACB is CBA

Have Fun and Remember to
STAY SAFE.

Check lake level here:  https://www.tva.gov/Environment/Lake-Levels/Hiwassee-Operating-Guide

The above is a direct link to the lake level. Give chart some time to load.

Initial contents of cache:   Log only

Container should be easy to spot once you get to the right spot.

You can validate your puzzle solution with certitude.