About these classes: Mondays in Holborn, 7:30 p.m. - 9:00 p.m. (intermediate) and Tuesdays in Islington, 6:30 p.m. - 8:00 p.m. (beginner) and 8:30 p.m. - 10:00 p.m. (intermediate). Arrive 15 minutes prior to class time. Get details of both locations.

About this group: Gay men's naturist club hosting various events for those interested in nudism.

About this group: CONGA is an organization whose primary function is to provide a recreational, social and educational outlet where nudity is accepted. We are not concerned with your age, race or physical appearance, only your attitude. We seek male members who enjoy nudism as a way of life, not as a prelude to sex. For this reason, CONGA is NOT a club for organized sexual activity. In fact, overt sexual behavior during club functions is strictly forbidden.

About this group: [Effective Jan. 1, 2010, San Francisco Kindred Nudists (SKiNS) merged with Let It All Hang Out (LIAHO).]

LIAHO is a gay nudist club for men in Marin, Napa, Sonoma, San Francisco, and the East Bay. We welcome all men who enjoy socializing in the nude with other men. Our gatherings are once or twice a month for potlucks, barbecues, pool parties, movie nights, workshops, etc. All LIAHO events are private parties, open to club members and their guests.

About these classes: Men-only group meets three times a week on north side near the lake.

About these classes: Workshops and private sessions are available in both Minneapolis, MN and New York, NY. See instructor's schedule (including touring in other locations).

Minneapolis classes meet Mondays, 7:15 p.m. to 8:45 p.m., and Thursdays, 8:00 p.m. to 9:30 p.m. Reservations required; view class details.

About this group: Gymnos strives to promote, strengthen, and protect naturist values within the gay community and to unite all people of South Africa through education and understanding of the naturist lifestyle. Gymnos promotes and provides clothes-free environments that ensure a safe and wholesome atmosphere where members can get closer to nature, their friends, and themselves.

Gymnos is a business member of the South African Naturist Federation (SANFED).

GNI Club Liaison's note: This group is not to be confused with Gymnos of London, United Kingdom, which, unfortunately, shut down on March 31, 2010 after more than 30 years in operation.

About these classes: Sundays at 6:30 p.m., Thursdays at 7:30 p.m. in Central Square.

This group doesn't care if you are young or old, straight or gay, sculpted or sagging. It is refreshingly free of attitude.

Classes are for all levels and designed to keep everyone fit and flexible, with options to adjust poses for challenge or comfort.

About these classes: For men. Classes several days per week at varying levels. See Classes & Workshops page on web site for schedule, other details, and e-mail link.

About these classes: For men. Fridays, 6:30 p.m. to 8:00 p.m., during local school terms. Also, multi-day retreats between terms near Sydney NSW. Contact instructor for dates and other details.