Local authorities can impose fines on people hiking nude in the Alps in the conservative canton of Appenzell.
http://www.bbc.co.uk/news/world-europe-15785219
http://www.bbc.co.uk/news/world-europe-15785219
Sec. 54-134. Expectorating, urinating, defecating. It shall be unlawful for any person to expectorate, urinate or defecate on any public street, alley, sidewalk or floor of any public building, or any other place not intended or designated for such purpose where the public gathers or has access. (Code 1981, § 15-69)
38-5. Bathing. It shall not be lawful for any person or persons to bathe in any of the waters within the corporate bounds of the village unless attired by a suitable bathing suit or covering, or to disrobe in any of the streets or public places or in any automobile or wagon in said streets…
San Juan County Ordinance NO. 7 -1995 (Passed June 7,1995) People apparently will relieve themselves fewer times if there are fewer toilets.