Ošljak is the smallest inhabited island (with a surface of about 0,332 km²) on the Adriatic Sea and the Croatian Adriatic coast. It is located in the Zadar Channel and the length of the coastline is 2,41 km, and the highest peak is 89 m high. Ošljak is an example of traditional Mediterranean architecture, in which the Church of Saint Maria is located from the 6th century, as well as a windmill from the 16th century. Extending from the Church towards the north are the ruins from the summer mansion of the Calogera family. You need to pass through gardens and pergolas (park) to get to the ruins . In 1630, a Lazarette (quarentine) was built on Ošljak for sick patients and in 1775 windmills were made for wheat milling.