Otočić svete Marije nasred Velikog jezera u sjeverozapadnom dijelu nacionalnog parka Mljet izniman je prirodni fenomen, ali i kulturni i povijesni artefakt. Benediktinski monasi, koji su u 12. stoljeću nastanili otočić, ostavili su u naslijeđe samostanski sklop okružen kultiviranim krajobrazom koji svjedoči o promišljenom suglasju graditeljstva s prirodom. Rad je usredotočen na povijesne, krajobrazne i vjersko-simboličke značajke samostanskog sklopa i otočića svete Marije s posebnim zanimanjem za klaustarski vrt.The islet of St. Mary in the centre of the Great Lake in the Mljet National Park presents not only a natural phenomenon but also a cultural and historical monument. The islet was settled in the 12th century by the Benedictines who left behind a monastery complex surrounded with cultivated landscape showing a harmonious relationship between architecture and nature. The paper examines historical, landscape, religious and symbolic aspects of the monastery and St. Mary’s Islet with special attention given to the cloister garden