Kamičak Castle, Castle ruin in Drniš, Croatia

Kamičak Castle is a stone fortification positioned above the Krka River valley near Drniš, with remains that can be accessed via marked trails through the landscape. The ruins sit at an elevation of about 95 meters (311 feet), situated between Visovac Lake and Roški Slap waterfall.

The fortress first appears in written records in 1345 when King Ludovik I of Angevin confirmed its ownership to the Nelipić family, who had controlled the site since the 11th century. The castle remained a seat of power through the medieval period until eventually falling into abandonment.

Locals call Kamičak "Utješinovića grad" after the family that held it from 1445. Grgur Utješinović donated the island of Visovac to the Franciscans, and his son Juraj, born in the castle in 1482, became a cardinal. Marko Mišljenović, Ban of Croatia in 1506–1507, also came from the Kamičak area.

Access to the ruins is free and the site lies along marked trails within the Krka National Park system, making it straightforward to reach. Wear proper hiking shoes since the paths leading up to the ruins can be steep and uneven in places.

Local tradition holds that Petar Svačić, the last independent king of Croatia, may have been born at this castle before his death at the battle of Gvozd Mountain. Though his exact birthplace remains disputed among historians, this connection links the ruins to a legendary figure in Croatian history.