Could you imagine a labyrinth that descends deep into the earth? That is Abisso Labirinto. This cave opens on the northeast side of a shallow sinkhole. It sits about 300 meters northwest of the Coca Cola factory.
To reach the Abisso Labirinto entrance, take the path. The path goes right from the side road of the highway, the old 202. It’s near the stretch that runs alongside the factory. Follow this path for about 150 meters.
Abisso Labirinto is more than just a hole in the ground. It’s a journey into the earth’s embrace. The main entrance to Abisso Labirinto was recorded on August 20, 2006. The GPS positioning has a high reliability. It was a regional GPS repositioning effort.
Let’s talk numbers. The planimetric development of Abisso Labirinto stretches 118 meters. The depth is 80 meters. The total difference in elevation is also 80 meters. The bottom of the cave reaches 153 meters above sea level.
The cave’s entrance is quite unstable. It leads to a 26-meter drop. This area has concretions, marked as points 5-6 and 7 on the survey. As you descend, the rock becomes bare. It is black and characterized by sharp edges.
From the base of this initial drop at Abisso Labirinto, you have choices. You can descend another 19 meters. This leads to a connection of shafts and chimneys. Deep erosions mark the walls here. The floor is covered with clastic material, blocking narrow fissures.
Alternatively, you can traverse a few meters. Then descend 13 meters at point 37 on the survey. From here, a low passage heads north to an 18-meter drop. To the south, a 5-meter drop opens into a concretion environment. Points 35 and 36 on the survey mark this spot. Above is a flowstone chimney that ends after a few meters.
Or, you can proceed through the bypass. This takes you to more concretion environments. These are points 38, 73, and 74 on the survey. From here, you can continue down to the deepest point, marked as point 57. You could also ascend the R8 climb to a viewpoint above the 13-meter drop. From there, you can see the end of the chimney above. A few meters above the climb, a window at point 42 connects to the high branch. This branch includes chimneys and meanders. It joins the Air Shaft, through connections at points 19 and 20.
From the terminal chambers, points 53 and 54, two climbs are possible. R4 and R13 lead to collapse environments. Further exploration here is challenging.
The path to the deepest point involves a 14-meter drop. It ends on a ledge at point 58. From here, you can descend a 7-meter shaft. This is blocked at the bottom by clastic material. Or, you can take a narrow passage to the northeast. This leads to a 5-meter drop. From the base of this, a tight spot leads to an 18-meter shaft. It is quite spacious and partially covered in concretions. The bottom is unstable rubble, partially secured with steel cables. Beyond this unstable area, a 9-meter drop ends in another dangerous landslide.
From the base of the entrance shaft, you can also ascend the RIO climb. This reaches the window that connects Abisso Labirinto to a nearby cave.
Embedded in the rock throughout Abisso Labirinto are numerous fossils. The fossils are especially notable in the 13-meter shaft. Some are quite large, up to 16 cm long and 5 cm in diameter. They are of the Hippurites type.
Abisso Labirinto is connected to the 3727/5204VG cave. It is a world beneath our feet, a testament to time and geological forces.