The article is based on the thesis by the author of the article „Oekotourismus in Polen am Beispliel des Biebrza- Nationalparkes” prepared in the technical university in Zurich. The final conclusion states that ecotourism in the Biebrzański National Park can effectively provide wealth of the region, while protecting the nature and providing the local community with access to natural resources. The author justifies this standpoint in the article, which is especially interesting as our problems are reviewed from outside.