Whitney is a good lake. Most hang out on the north end, from Plowman on north up into the river about as far as you can go.
There is usually a big "get together" on Labor Day week end at Plowman but I have not heard anything for sure this year.
I haven't heard yet if anyone is going up on the Fourth of July.
I don't know any of the crowd that goes there regularly, but there is a group that goes up on special occasions.
When I was last there on Memorial Day, the lake was down about three feet but I think it is up a bit now. I would be careful on the river until you learn where all the stumps and sand bars are.
I would expect a little trash coming down the river with the rains of the last few days.