Build an outdoor shower

I would love to build an outdoor shower off my deck where I could take refreshing and natural showers among the trees (or kind’a among the trees). The backyard is heavily wooded and the trees come right up to the deck. The shower could be off the deck about forty feet accessible by an elevated wooden pathway (the deck is elevated) which leads to the shower platform. The design would be rustic – built with a lot of unfinished wood and limbs/logs. It would look like a part of the forest, decorated with native plants and ferns. It would be a “minimalist” shower – using a minimum amount of materials. It would have panels you could raise or lower, or swing in and out as much as you wanted to give you the level of privacy you wanted. This would give you the security you wanted but still give you the feeling of showering outside (a thrill, perhaps?) and communing with nature. The showerhead would be large. One of those ‘rain forest’ showerheads. There would be plenty of hot water for winter showers and cool water for summer showers. What do you think? Any ideas to make it better?

A guy I know who built an outdoor shower for himself is going to do the plumbing (to the hot water heater!)...I just need to come up with a design. He used an actual shower liner and covered the outside with wood panels to match the rest of the house, but I want something cheaper and more natural. I’m thinking a teak wood base and vinyl lattice for the walls, then grow a vine for privacy.