Lelision is an ecology and nature website focused on environmental awareness, wildlife, and the preservation of natural habitats. Its content helps readers explore environmental issues and learn about the plants, animals, and biotopes around them. The site brings together current affairs, an encyclopedia, and practical ways to get involved, including petitions, denunciations, community opinions, and information about destructive projects. It also features nature-related professions and projects, alongside multimedia content such as films, animations, games, books, music, videos, and live broadcasts.

For readers looking to connect with nature, Lelision offers photo collections, nature spots, quizzes, and a map to help plan an outdoor break. Articles and recommendations cover topics ranging from recognizing birds and plants to understanding wildlife and conservation. The website also invites visitors to share their own nature stories, contribute as writers, and take part in discussions. By combining information, entertainment, and opportunities for participation, Lelision aims to encourage people to renew their connection with nature and take an active interest in the environment.