The earliest known naturist club, the Fellowship of the Naked Trust, was founded in
Matheran in
British India in 1891 by a
District and Sessions judge named Charles Crawford. The club had just two other members, brothers Andrew and Kellogg Calderwood. A proposal to add a female branch to the organization was never realized, and it went out of existence when Crawford was transferred to
Ratnagiri shortly thereafter. He died in 1894. Correspondence between Crawford and early
gay rights activist
Edward Carpenter suggests the latter knew of similar groups in
Vienna and
Munich at the time, but no other evidence of their existence has surfaced. The term
Nacktkultur ("naked culture") was coined in 1903 by Heinrich Pudor for Germany's growing naturist movement, which connected nudity with
vegetarianism, social reform, and various ideas about health and fitness. It flourished through the 1920s in a network of 200 members' clubs, and became associated with radical
socialism. In 1929,
Adolf Koch's new school of naturism in Berlin hosted the first International Congress on Nudity. The first landed naturist club in the United Kingdom was the "Moonella Group", established in
Wickford,
Essex, in 1924. Club membership was carefully vetted, and the founding members used
pseudonyms to protect their identity, including the eponymous "Moonella", who owned the house and land on which the club met. It closed in 1926 because of building on adjacent land. More "sun clubs" were established in Britain through the following decade. Naturist clubs appeared in
Canada,
New Zealand, and the
United States in the 1930s. Having been established, naturist clubs coalesced in various countries to form national organizations. An early forerunner was the American Sunbathing Association, which was founded in 1931, and has now become the
American Association for Nude Recreation (AANR). In 1953 the national organizations in turn came together to form the
International Naturist Federation (INF). The INF was founded at the world's first naturist holiday centre,
Centre Hélio-Marin (CHM) Montalivet in France, which had been opened three years previously by Albert and Christine Lecocq. at a time when naturism in other countries was limited to membership clubs (and when Croatia was part of
Yugoslavia). The oldest naturist resort in Croatia is Koversada just outside
Vrsar, which was established in 1961. Naturism now accounts for an estimated 15% of Croatia's tourist industry. Today most naturist clubs with land and facilities operate them as resorts catering to paying guests, although many are still focused primarily on club members. The first two decades of the 21st century saw the appearance of the first commercial naturist resorts in South East Asia, with nine operating in
Thailand as of the opening of Barefeet Heaven Hill Naturist Resort in December 2019, and two in
Bali. Whilst tolerance for nudity in general is increasing over time, naturist club membership numbers have fallen in recent decades and average members are increasingly older people. It is speculated that younger naturists no longer feel they need to join a club or visit a resort in order to practise naturism. == Typical amenities ==