Going deep into the insides of the earth is possible with this tour. Underground trails will lead us through grottos and chambers exploring a world indifferent to light. With flashlights to light our way and all the gear for the adventure, we will enter into this labyrinth of ancient underground rivers and seabed’s, exposed now after thousands of millions of years. We will visit rock formations with names like, “the birthing canal”, “the papaya”, “the coral”, “the altar”, as well as the numerous rock formations called stalactites and stalagmites are very common inside the caves, some hanging from the rocks overhead, and others surging up from the ground. A great colony of bats inhabits the caves, as well as spiders and crabs.