Table 1. Main characteristics of investigated underwater caves from North-East Bulgaria.
Caves | Submerged | Semi-submerged | Length (m) | Area (m2) | Volume (m3) | Depth (m) |
---|---|---|---|---|---|---|
Budova | No | Yes | 50.2 | 240.2 | 936.4 | 3.5 to 1 |
Tulenova | No | Yes | 83 | 692 | 2,150 | 4 to 1.2 |
Temnata dupka | No | Yes | 73.7 | 344.5 | 2,291 | 3 to 0.5 |