Dam dead ends, roads that lead down into the water and trees that used to be on land by now are covered with water, this all happened when the new cotter dam was built and the valley was flooded with water, all of the trails that used to lead down to the bottom now lead into the water. If the water level drops enough you can walk way further down the track then you can when the dam is full.
This cache may be flooded, if you think it has been please contact me