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• The American Association for Nude Recreation - The largest US nudist/naturist association, includes directory of member clubs and resorts as well as essays and articles on the nudist lifestyle.
• American Association for Nude Recreation - Florida - Regional branch of this national organization covering Florida, Mexico, and the Caribbean.
• American Association for Nude Recreation - Northwest - Branch of this national organization serving the states of Oregon, Washington, Idaho, Montana and Alaska.
• American Association for Nude Recreation - Western Region - Regional branch of this organization that serves the states of Arizona, California, Colorado, Hawaii, New Mexico, Nevada, Utah and Wyoming.
• American Nudist Research Library - Located on the grounds of Cypress Cove Nudist Resort in Kissimmee, Florida, USA, this library chronicles the history of naturism.
• Australian Nudist Federation - Organization that promotes naturism on a national scale and encourages inter-club social activities. Includes details of affiliated clubs and resorts.
• Back to Eden Nudists - Christian naturist group. Includes members' forum.
• Bare to Breakers - Official nude runner information for the annual run held in San Francisco, California. Includes event dates.
• Beach Front USA - An Organization devoted to keeping American beaches, rivers, springs, lakes and trails nude.
• B.E.A.C.H.E.S. Foundation - A Miami Beach-based national non-profit naturist organization whose goal is to preserve, establish and educate the public about North America's clothing optional beaches.
• Christian Naturist Fellowship - Organization that arranges meetings in the UK where naturist Christians can support and encourage each other.
• Federation of Canadian Naturists - Promotes nudism in Canada and represents the interests of Canadian naturists, clubs, resorts, and organizations.
• Florida Keys Naturists - Non-profit group promoting clothing optional recreation on public lands and in private businesses.
• International Men Enjoying Naturism - An informal social and recreational organization of like minded gay men. Includes details of their annual gathering in Northern Maryland, USA.
• International Naturist Federation - A worldwide organisation which works to enhance the naturist experience by promoting the benefits of naturism to the general public.
• International Naturists Association - A worldwide naturist club with nudist news, a list of INA approved resorts, and photographs.
• The Irish Naturist Association - Organization whose primary function is to promote naturism in Ireland. Includes details of naturist events and beaches.
• Italian Naturist Federation - A non profit organization that is part of the International Naturist Federation and represents the interests of Italian naturists.
• Naked Scotland - All about Scottish naturism including details of clubs, beaches and special events.
• Naturist Action Committee - Non-profit political adjunct to The Naturist Society which protects the rights and interests of naturists throughout North America.
• Naturist Christians - Organization dedicated to answering questions about naturism and its place in the Christian life. Includes a statement of faith, forum and photo album.
• Naturist Education Foundation - The non-profit informational and educational adjunct to The Naturist Society. Includes the Naturist Law Library.
• The Naturist Society - Publishers of the World Guide to Nude Beaches and Resorts and Nude and Natural magazine, The Naturist Society educates in body acceptance and promotes clothing-optional lifestyles and recreational sites.
• Nautical Naturist - Non-profit organization that promotes nude boating in North America by assisting any group in forming a local flotilla. Includes details of existing flotillas.
• New Zealand Free Beach Group - Organization that promotes naturism in New Zealand. Includes a guide to naturist beaches, clubs and accommodation.
• New Zealand Naturist Federation - Includes directory of affiliated clubs, home stays, and subscription information for the quarterly magazine.
• OBX Nudist Club - A family oriented club that sponsoring summer get togethers on the outer banks of North Carolina.
• Oregon Clothing Optional Beach Alliance - Organization dedicated to the preservation of family oriented clothing optional recreation at Oregon's officially designated nude beaches. Includes a forum.
• South African Naturist Federation - Promoting naturism in South Africa. Includes events, a discussion forum, a picture gallery, a directory of beaches, and links to resorts and bed and breakfasts.
• Southern Tasmanian Association of Nudists - Serving families, couples and singles. Includes policies, FAQs and membership details. Located in Glenorchy, Tasmania, Australia.
• Telord - Association of Russian Naturists - Naturist association based in Moscow. Information on group philosophy, and events. [English and Russian]
• The Trade Association for Nude Recreation (TANR) - A trade group composed of clothing optional and nudist resorts, travel agencies, and cruise companies in the USA.
• Turkish Nudist Club - Formed to unite Turkish naturists and to affiliate with other nudist organizations such as FKK. Includes details of their annual get-together.
• Western Association for Nude Recreation - California based non-profit group whose site contains naturist philosophy, articles, news and information.
• Western Canadian Association for Nude Recreation - Includes details of nudist clubs, a quarterly newsletter and a members' forum.
• World Naked Bike Ride - International organization that co-ordinates nude cycling protests around the world. Includes details of affiliated events and how to start a new one.
• World Naked Bike Ride (Montpelier) - Organization that arranges the local ride of this international event. Details of past and future events in Montpelier, Vermont, USA.