Tourists who intend to spend a few days in Sarajevo, accommodation in a number of hostels will pay 15 - 60 KM. However, the tourism board say that, according to their data, their work reported only four hostels.
Vjetrenica is a protected park of nature and the special geological reserve at the edge of the Popovo Polje in the Ravno municipality and approximately 6,500 meters long. The cave is adorned with a number of lakes, several waterfalls, creeks, and one of its main attractions is the Great lake about 180 meters long.
The name of the cave (vjetar meaning wind in local languages) originates from occurrence of strong winds at the entrance and drafty insides. Vjetrenica is considered to be the most biodiverse cave in the world with 92 troglobionts species, and rich in other animal species that inhabit caves.
Vjetrenica is a wide-spread cave whose mid level, Glavni kanal (Main Channel), is almost continuously stretching horizontally from the beginning to the end. Above it, there are vertical channels, the so called chimneys, which connect it with the surface, and below it there are several lower channel systems of Donja Vjetrenica (Lower Vjetrenica) and Absolonov kanal (Absolon Channel).
The cave is relativele low throughout the first 150 meters and mostly dives from the northeast towards the southwest and further morphs into a wide and tall passage for another 600 meters, which is the length of the tourist path and tours usually run about an hour.
The ceiling of the first 200 meters is lower than the average human height. The first and the second halls are connected by the „Gates“ – which are a natural phenomenon of round shape in the rocks carved by water. On the right end of the third hall is Vilino gumno, a site of birth of mythology of ancient Popovo Polje. Guestbooks can also be found with signatures of old visitors, these are made or fine rock sheets.