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An uninhabited island in the sea. Blue
Water bubbles on a blue background
Beautiful jellyfish on a blue background
Light ripples of blue sea water
Cave with waterfall, nature
Beautiful views of the caves of Bulgaria
The cold cave is covered with ice
Winding rocks in the cave
A man by the fire in an ice cave
It is rare to find a waterfall in a cave
The cold light at the entrance to the cave
Gas bubbles in a water bottle
