Wikipedia
Anarcho-naturism (also anarchist naturism and naturist anarchism) appeared in the late 19th century as the union of anarchist and naturist philosophies. "In many of the alternative communities established in Britain in the early 1900s nudism, anarchism, vegetarianism and free love were accepted as part of a politically radical way of life. In the 1920s the inhabitants of the anarchist community at Whiteway, near Stroud in Gloucestershire, shocked the conservative residents of the area with their shameless nudity." Mainly it had importance within individualist anarchist circles in Spain, France, Portugal, and Cuba.
Anarcho-naturism advocates vegetarianism, free love, nudism, hiking and an ecological world view within anarchist groups and outside them. Anarcho-naturism also promotes an ecological worldview, small ecovillages, and most prominently nudism as a way to avoid the artificiality of the industrial mass society of modernity. Naturist individualist anarchists see the individual in their biological, physical and psychological aspects and tried to eliminate social determinations.