On the Nevada MD'ing facebook page, there's several Reno to Carson city guys that chime in there. Some of them are beach hunters.
There's definitely swim beaches on the south shore (d/t all the tourism via stateline gambling, etc...). And I heard that during the drought of 1981-82-ish, that guys were coming up from Sacramento and getting silver coins off those beaches. D/t the receded waters d/t the drought then.