The Lokvarka cave consists of six floors, and the visitor can see the first four, descending to a depth of 70 meters. The fifth – Virgin Hall, and the sixth – Gordan’s floor, are accessible only to speleologists because they are reached by narrow long vertical passages with periodic water flow. Gordan’s floor, located at a depth of 275 meters, is especially interesting because it expands a spacious canal which is an underground watercourse of the river Lokvarka. It is also the largest hall of the cave. The canal is filled with stone blocks weighing 25-30 tons covered with dark mud.