Four Lakes is a set of four modest-sized lakes nestled about one mile southwest of Round Lake, in a primitive area that hardly ever sees any human visitors. Each of the lakes is very lovely -- see the photo below.
This particular cache is at the edge of the northeastern lake, namely the lake that one first reaches, if coming from Round Lake. From here, just by hiking in a southwestern direction, one can visit each of these lakes, one by one, and even continue all the way to the Pacific Crest Trail.
THERE IS NO TRAIL TO THIS SPOT -- CHALLENGING CROSS-COUNTRY HIKING IS REQUIRED.
One approach is to take the branch trail from the main Tahoe Rim Trail at the spot of the Round Lake: First view (south side) cache (GC8WYF1). This branch trail, after just 150 meters (500 feet), ends at a small campsite at N38 44.793 W120 00.334; from here head over some rocks to a clearing at N38 44.724 W120 00.426; then head over some rocks and downhill through some bushes (annoying but brief) to a stream crossing (large log) at N 38 44.695 W 120 00.506; then ascend some cliffs (steep but hikeable) at N38 44.677 W120 00.559; then head to some trees at N38 44.630 W120 00.656, then head to a saddle at N38 44.646 W120 00.765; then head to this cache at the coordinates above. (These waypoints are also listed as "additional waypoints" for this cache.)
Another approach is to start from the Pacific Crest Trail at the Pacific Crest Trail: Start uphill cache, then hike cross-country to the Four Lakes: Upper Truckee crossing cache, then to the Four Lakes: Cliffhanger cache, and then to this cache.
Here is a photo of the largest of the four lakes:
