Lambda Divers is a nonprofit, social organization dedicated to promoting scuba diving among the members of the Gay, Lesbian, Bisexual, Transgender and Transsexual community. Lambda Divers grew from a desire to meet other GLBTT divers to befriend and with whom to safely enjoy diving in a supportive "family" environment. What began as a small gathering has grown to one of the most successful GLBTT scuba clubs in the world. With over 125 members from L.A. to Toronto to London, Lambda Divers provides a unique forum through which GLBTT divers can meet, learn more about diving, make friends and dive buddies, and enjoy great camaraderie on the best-priced dive trips available.

Lambda Divers members gather several times a year in the Washington/Baltimore area and on dive trips. In addition to the trips, the organization may sponsor "discover scuba" classes, photo classes, or local interest visits such as the hyperbaric chambers in Baltimore, and more. With picnics, holiday parties and Pride Day, there is ample time for social interaction as well.