Eventually, the water forms a huge cavity, i.e. a cave. Cave walls often contain calcium deposits called calcite curtains or drapery. Caves may also contain icicle-like lime deposits called stalagmites, stalactites, columns, steps, streams, rivers, even waterfalls and lakes. Stalactites are lime deposits that hang downward from the ceiling or walls of caves, measuring merely a few centimeters or up to several meters. The water, containing a carbonic acid solution, rises until it reaches the level of the ceiling of the cave.
Drops of water begin dripping.
Successive drops dripping from the ceiling form a small lime tube. As water continues to drip through the tube s hollow center its diameter and length increases. This lime deposit is called a stalagmite. With the passing of time, the stalactite and stalagmite grow until they join, forming a column, the diameter of which constantly increases. A large part of the island is made of limestone, which accounts for the large number of caves, most of which are small.