Mljet Island is a beautiful island located in the Adriatic Sea, part of Croatia. It is known for its stunning natural landscapes, including lush forests, crystal-clear waters, and two saltwater lakes, Veliko Jezero and Malo Jezero. The island is a popular destination for outdoor activities like hiking, swimming, and kayaking. A significant portion of Mljet Island is protected as a national park, making it a haven for wildlife and nature lovers. The island is also home to the historic Benedictine Monastery, which dates back to the 12th century and is situated on an islet in Veliko Jezero.