Almargem is a non-profit association founded in the city of Loulé on June 1988 and officially registered in the city of Silves, on July the same year.

The main purposes of Almargem are:

- the study and divulgation of the most significant historical, cultural and natural values of the Algarve;
- the uncompromising safeguard of these same values and the suggestion of realistic propositions for their recovery and qualification;
- the promotion of activities pursuing an integrated and nature respectful local development.

Almargem's main office is located in Loulé. The association is sustained on approved Statutes and Internal Rules. The functional structure relies on the volunteerism and autonomy of its members that elect the Social Bodies in a General Meeting, each two years.

Legally, Almargem is an environmental non-governmental organization (NGO) of regional scope, being registered in the Agência Portuguesa do Ambiente (APA). Almargem is also a founding member of the Confederation of Portuguese environmental associations (CPADA).

Almargem is constantly developing diversified activities like cultural and ecological awareness raising projects, nature and rural world discovery and promotion actions, production of studies and scientific dossiers. Almargem also tries hard to maintain constant vigilance and involvement regarding the threats and aggressions that affect the environment and the cultural heritage of Algarve.

The Association develops several activities and projects supervised by the Management and other collaborators, distributed in the following areas:

- Administration and Organization
- Environmental education
- Ecotourism and Mountaineering
- Biodiversity and Nature Conservation
- Ecological Intervention