NEL, the Núcleo de Espeleologia de Leiria, is an association based in Leiria, Portugal, bringing together friends and members around shared interests in exploration, outdoor activities, and sport. More than an association, it describes itself as a family united by the activities they enjoy. Its work is organised through several sections, including Pédatleta, Pédegato, Pédevento, and Pénoburaco, alongside initiatives such as Brisas do Lis, walks, and activities involving joëlettes.

The organisation also offers educational activities and topography, and promotes its Casa Abrigo. NEL takes part in community events, including sporting gatherings, walks, and activities such as climbing and sliding, and has partnered with initiatives in Leiria. Its website shares news and upcoming events, and invites people to get involved as members.

Visitors can also find NEL merchandising and contact information. The organisation identifies itself as serving the public interest, with that status recorded in Portugal’s Diário da República in 1993. Through its varied sections and events, NEL encourages people to discover, participate, and enjoy activities together