Voters in the heart of the Swiss Alps on Sunday passed legislation banning naked hiking after dozens of mostly German nudists started rambling through their picturesque region. By a show of hands citizens of the tiny canton (state) of Appenzell Inner Rhodes voted overwhelmingly at their traditional open-air annual assembly to impose a 200 Swiss franc ($176) fine on violators. Only a scattering of people on Sunday opposed the ban on the back-to-nature activity that took off last autumn when naked hikers - primarily Germans - started showing up in eastern Switzerland. The cantonal government recommended the ban after citizens objected to encountering walkers wearing nothing but hiking boots and socks. "The reactions of the population have shown that such appearances over a large area are perceived as thoroughly disturbing and irritating," the government said in a statement.