Have told this a couple of times..
I have a completley secluded place on the banks of the river near where I live. There is a large, long, clean sandbar and I go all the way to the furtherest end of it, strip naked, swim in the shallow waters, lay naked on the sand while the sun beats down on my chest, then I walk the banks totally naked.
I sometimes stroke horny cock there too. I did this just a few weeks ago and loved it. Have enjoyed it many times over the years.