via www.dezeen.com
I have designed and built not one, but two different outdoor showers in my life. Both required the design to integrate into the landscape. As much as I like the simplicity of Inga Sempé’s Delta Shower that hooks up to a garden hose, I have to brag that mine had cold and hot water.
A contemporary gallery of art, design, film and music. 
that is cool
I have always wanted an outdoor shower. not so much outside my current abode in Brooklyn, but the few times I have used them (upstate, nantucket, oregon, kerela) it is eden-like heaven. with the hot water like yours, man, I’d never get out. (post it?)