Extracurricular teaching is a carefully planned process that promotes visual study and learning by gaining experience. This paper aims to explore the potential of Sisak and its surroundings for the realization of the content of teaching Science and society in extracurricular teaching. Its purpose is to suggest a way of accomplishing extracurricular teaching in concrete locations in the city and its surroundings. Sisak, the city on three rivers, has a wide range of natural geographical features, a long and rich history, and potential for various types of extracurricular activities. The first part of the paper gives a systematic overview of the potential of Sisak and its surroundings (natural, geographical, historical, economic, etc.) for extracurricular teaching of Science and society. For this purpose, the relevant literature was analyzed, in which Sisak and its surroundings were themed, and various Internet sources were used. The second part of the paper contains an overview of the textbook contents of the subject Science and society. For this purpose, the contents of current textbooks for Science and society of two publishing houses in Croatia - Profil Klett and Školska knjiga were analyzed. At the end of the paper, the results of a comparative analysis of the potential of Sisak and its surroundings for extracurricular teaching with textbook contents of the subject Science and society are presented.