sea cave, Malta - Sea caves or the Blue Grotto are located on the island of Filfla in Malta. These caves are popular for their beauty and their location when combined with the sunrise, leads to beautiful shades of blue in the water.
This is a rare meteorological phenomenon called a ‘SKY PUNCH’. When people see these,they think it’s the end of the world. Ice crystals form above the high-altitude cirro-cumulo-stratus clouds,then fall downward, punching a hole in the cloudcover.