Ostrów Lednicki is a historical island located in the Lednica Lake in Poland. It is known for its archaeological significance, as it was once a center of early medieval settlement. The island features remnants of a fortified settlement and a church, which are believed to date back to the 10th century, during the time of the early Polish state. Today, Ostrów Lednicki is a popular tourist destination, attracting visitors interested in history and archaeology. The site is part of the Lednica Landscape Park, which offers scenic views and opportunities for outdoor activities, making it a valuable cultural and natural landmark in Poland.