Blue Hole - Luska's Lair
Bahamas, Andros Island

Andros Island could not have attracted attention if it were not for the mysterious whirlpools that disturb the quiet waters of the Caribbean Sea. The ancients associated this mysterious natural phenomenon with the discontent of an ominous monster named Luska. This half-octopus half-octopus with its long tentacles pulls into its lair everything that falls into the water.
Although the days of monsters are long gone, divers are now cautiously embarking on a dangerous journey through the failures of Andros, which are located in the heart of the island. Scuba divers move slowly so that no movement lifts a cloud of silt from the bottom and does not impair visibility. In case of danger, a guide cable will come to their aid - it will lead them back to the entrance. The main secret of Andros is connected with the waters of the Blue Hole (Blue Holes). They really appear inky blue because of the great depth. This is a tidbit for experienced divers. Andros Island, part of the Bahamas archipelago, is a cluster of islets and coral banks with many straits. Its length is about 160 km and its width is about 64 km. The island is surrounded on three sides by warm shallow seas. Summed up the fourth - east - coast. Here is the so-called Tongue of the Ocean, a long, very deep hollow. If you look at the island from above, it is impossible not to notice the irregularly shaped dark blue spots - these are the entrances to the underground labyrinth of flooded caves, interconnected by passages and galleries. As a rule, the fact that a person cannot understand causes fear in him. Regarding Andros's blue holes, this is exactly the case. These places are notorious, but has it ever stopped a traveler? Who has the power to abandon underwater travel through galleries that lead to small cubicles and giant halls resembling cathedrals? Whirlpools, to which blue holes owe their fame, are due to tides. Water rises above the barrier reef surrounding the island and begins to move slowly in a circle. Holes swallow it with greed, currents form whirlpools, extremely dangerous, as they can suck even small fishing boats! Then, at low tide, everything repeats, but in the reverse order: holes spew out real water fountains. This Luska gets rid of the remnants of the eaten lunch. The exact number of blue holes is not yet known. And only a small part of them has been investigated.
It is believed that the formation of these places began about 130 million years ago. The change of periods caused changes in sea level, part of the caves was under water, but soon collapsed. Other caves, on the contrary, grew upward, and in some places open mines formed in this way. Then water came again, and blue holes appeared. Now at high tide, the sea level around here is higher than the level of island groundwater, so that sea pressure drives water into blue holes, forming a whirlpool. One way or another, blue holes have become a haven not only for the mythical Lusku. Here sharks still lie on a sandy bottom, and crayfish live in stone crevices. Sky blue and pale lilac lips soar in the depths, and somewhere below a blind cave fish with a colorless body is swarming.
These places also became the last refuge for people: in 1991 in one of the lakes, known as the Sacred Blue Hole, human bones and skulls were discovered. Scientists decided that those whose remains were found in the lake are contemporaries of Columbus. The sensational discovery further spurred interest in Andros, one of the few places on Earth whose secrets have not yet been revealed by mankind.

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