One of the largest caves in Istria, Mramornica cave is a true gem of the Istrian underground. Mramornica was mentioned as early as 1770 when the famous travel writer Alberto Fortis visited and described this cave.
Close to Brtonigla, by Stancija Drušković, after the nearly vertical steps, stands the entrance to one of the largest underground halls in Istria. The cave is rich in different coloured dripstones, stalagmites that are as much as 13 meters tall making Mramornica particularly fascinating and attractive. From the well-kept paths of the cave there is a view of the inaccessible parts, which because of this secretiveness are even more alluring. For all lovers of untouched nature, far from the summer crowds and heat, Mramornica is an ideal place for natural refreshment and relaxation.