Rob Greenfield is an adventurer and an environmental activist. Greenfield went a year without a conventional shower but instead, he bathed in lakes and rivers or sat in the rain.  During his natural baths, he sometimes used eco-friendly biodegradable soap. The reason he did this was that he undertook a 100 day bike ride across America without a shower to promote “sustainability and eco-friendly living.” After his ride proved successful, he believed that he could go for an entire year.

Link to his blog and pictures