I have showered at public swiming areas (textile) many times, but never nude. Would love to one day ;-)
my first experience of an outdoor shower came about 18 months ago when I was doing some voluntry work in Africa, the village I was staying in had no running water but was, luckily next to a fair sized river, for bathing purposes they kept men and women sepreate, It was however great, if we wanted a bath all we did was strip off and jump in the river, when Rachel, the only other female volunter, and I asked about showers some of the women set up a sort of home made shower for us, they made holes in the bottom of a couple of buckets, hung them for a tree and then got 3 women for each to pass more water up and put it into the 'shower', It was a fairly surreal experience standing there naked, wet and soapy beside my friend, totally open to the elements , having 6 or so women, work the shower whilst we chatted, to each other and the African women, and enjoyed the view of the savannah, normally at sunset. The drying process was also a new experience, for me at least, as bath or shower, everyone would just stretch out on some mating and, still naked chat or sing songs, tell stories untill we were dry. about a year later, and i'm now a nudist, for different reasons, and I always use the outdoor shower at my friends house naked, they are all casual nudsits themselves, got to say, anyway they are, I love them.
i'd love having a rain outdoor shower. took some real chilling spring mountain water showers in the nude at my first rainbow, there were a few bamboos pathetically shielding the shower spot but basically anyone could look at you but obviously no one cared.