Cave Spring Hot Springs - Fish Lake Valley Hot Springs
On the way to Cave Lake road, there is a natural hot spring - it is one of the more popular hot springs in Nevada.
The day we went there was only one person camping, we didn't test the water but Alice spent over an hour cleaning up trash.
A quick google of Fish Lake Valley Hot Well - you can find the location or here is the GPS information -> https://www.gaiagps.com/map/?loc=12.2/-117.9637/37.8121&pubLink=n2LIShIv1274lToCM65POrsx&trackId=9e65a761644cb9b4ea19c8488e384025a5733c8a&layer=GaiaTopoRasterFeet
The was an easy-to-travel 2wd drive friend road that most cars could travel down.
If you watch the youtube video you will see that the hot spring is clean and has small fish in it. There was one tent about 50 yards away from the hot spring - but didn't see them around.