Kosmaj is a picturesque mountain near Velika Ivanča in Serbia, known for its beautiful landscapes and historical landmarks. It's easily accessible by car from Belgrade, taking roughly an hour. Visitors can explore on their own or join a guided tour for more in-depth historical context, especially regarding the Partisan memorials from World War II. The best time to visit is from late spring to early autumn to enjoy the lush greenery and favorable weather, while winter can also offer scenic, snow-covered trails for hiking enthusiasts. Entry is generally free, although if you're opting for a guided tour, costs can vary but are typically affordable. Plan to spend a full day here to fully immerse in the natural beauty and historical significance of the area.