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Maletova Jama Cave, also known as Jama s slapom, is a significant natural wonder located near the village of Ocizla in the Municipality of Hrpelje-Kozina, Slovenia. This impressive cave system, situated at an elevation of approximately 410 meters, serves as a crucial sinkhole, channeling surface waters from the surrounding Beka and Ocizla areas. It's a prime example of karst topography, where water carves intricate paths through soluble rock, eventually resurfacing in places like the Osapska dolina valley and Boljunec.
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4.9
(8)
38
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Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.5
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52
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4.63km
01:32
110m
110m
Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

2.5
(2)
20
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Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
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Elevation 410 m
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There are two main access points to Maletova Jama Cave. The primary access is from the village of Ocizla, following a marked path below the church. This leads directly to the main sinkhole, but descending into the cave from here requires specialized caving or climbing equipment. An easier entry point is via Blažev spodmol, which is also reached by a marked path. From Blažev spodmol, you can access the main sinkhole through a passage, though this route can be waterlogged after heavy rainfall.
While the cave itself presents challenges, especially for deeper exploration, the marked trails leading to the cave entrances from Ocizla offer a more accessible experience. The path to Blažev spodmol is generally considered an easier entry. However, direct cave exploration, particularly beyond the initial accessible sections, is not recommended for young children or those without proper caving gear and experience due to muddy conditions, narrow passages, and potential waterlogging.
For exploring the deeper sections beyond the initial sinkhole, specialized caving equipment is essential. This includes helmets with lights, appropriate harnesses, ropes, and ascenders/descenders. Due to the cave's nature as a drainage system, sections can be muddy and waterlogged, so waterproof clothing and sturdy, waterproof footwear with good grip are also crucial. It's highly recommended to go with experienced cavers or a guided tour for advanced exploration.
Maletova Jama Cave is listed as an open cave with free entry, meaning there are no official, regularly scheduled tourist tours like in commercial show caves. However, for those interested in advanced caving, it is advisable to seek out local caving clubs or experienced speleologists who might organize expeditions. These would typically require participants to have prior caving experience and their own specialized equipment.
The best time to visit Maletova Jama Cave is during drier periods, typically late spring, summer, and early autumn. As the cave functions as a sinkhole for surface waters, heavy rainfall can significantly increase water levels within the passages and make conditions very muddy. Visiting during dry spells minimizes these challenges, making the accessible parts safer and more enjoyable.
Maletova Jama Cave is unique as a drainage-type formation. Unlike many caves known for stalactites and stalagmites, this cave features smooth, narrow passages carved by water flow. Visitors will encounter muddy sections and, in wider underground spaces, smaller underground lakes. It offers a raw, natural insight into hydrological karst phenomena rather than ornate speleothems.
While the outdoor trails leading to the cave entrances are generally dog-friendly, bringing dogs into the cave itself, especially beyond the very initial accessible parts, is not recommended. The terrain inside is often muddy, slippery, and can involve narrow passages or drops that are unsuitable for pets. For the safety and comfort of your dog, it's best to keep them on the surface trails.
Maletova Jama Cave is located near the village of Ocizla. For more comprehensive amenities, including accommodation, restaurants, and cafes, visitors should look towards larger nearby towns. Kozina (Hrpelje-Kozina) is a municipality center offering various services, and the city of Koper on the Slovenian coast is also within a reasonable driving distance, providing a wider range of options.
Beyond the cave itself, the surrounding karst landscape offers scenic views. The cave is relatively close to the Rosandra Valley in Italy, known for its natural beauty and hiking trails, and Soca Castle in Slovenia, which offers historical interest and panoramic vistas. Exploring the marked trails around Ocizla will also provide opportunities to appreciate the local natural environment.
Maletova Jama Cave was discovered on September 15, 1955. Its primary significance lies in its geological function as a major sinkhole, channeling surface waters from the Beka and Ocizla areas underground. This makes it a crucial part of the local hydrological system, demonstrating the powerful and continuous process of water shaping the karst landscape over millennia.
Visitors typically park in or near the village of Ocizla, which serves as the starting point for the marked trails leading to the cave entrances. While specific designated parking lots might be limited, there are usually informal parking areas available within the village or along the access roads. It's always advisable to park considerately and ensure you are not blocking local access or private property.