For the period 19th to 26th of September 2020 a team of 7 speleologists explored Kolkina dupka.
More about Kolkina you can find here.
The team had 6 overnights in camp II (-456m).
For the this period the following results were achieved:
- Water sampling – hydrogeological research is now taking place in Kolkina. Its main objective is to establish eventual connection between Koкlina and the nearby cave Katsite (2560m, -205m)
- Geological research – Sediment samples are collected from nine different sites from main rivers channels. They will be examined with full set of sedimentary analysis
- Communication – between camp II and the occasional flash camp III, there is now a cable, which is making it an official 3rd camp
- Technical climbing – many vertical passages were climbed and checked
- Survey – a total of 575 m were surveyed
Kolkina’s length now is 16 130m.
Pirin mountain is located in the South West of Bulgaria, here is the second highest peak, Vihren, 2914m. Furthemore, Pirin is featured by many peaks reaching 2800m, narrow ridges and majestic karst area with its main karst ridge. The deepest cave in Pirin, Cave System 9-11, is -407m deep and 2200m long, with its entrance at 2532m.
One of the most popular starting points for approaching Pirin is the small town of Bansko, which is also a well known ski resort.
About Muda and Crnopac
Further to our interest in Crnopac (South Velebit, Croatia) this summer was dedicated to another exploration there. This time in the cave Muda Labudova (-682m, 6335m*).
Muda Labudova remains not yet connected to the cave system Crnopac, while most certainly is part of it. Its potential is nothing but very promising and it seems like it is only a matter of time for Muda Labudova to become part of Crnopac’s cave system.
Mountain Biokovo is located in the Southern part of Croatia and more specifically in Southern Dalmatia, the starting point for climbing and exploring Biokovo is the seaside town Makarska.
The highest point is St. Jure, 1762m. There is an asphalt road to the very peak of St. Jure, facilitating the cave exploration. Biokovo is formed in limestone rocks with well expressed karst formations.
Since last year, Nedam is the 4th Croatian cave reaching depth beyond 1000m. Like with the other Croatian caves deeper than 1000m, Nedam is situated in North Velebit and more specifically in the massif of Hajducki kukovi, quite close to Lukina jama and Ljubuska jama. Until June 2020 its known depth was -1021m, the cave survey can be seen here. The cave follows an endless meander with narrow passages and active water flow in the deeper parts. The exploration here continues.