Grotta delle Viole is a sea cave in the Tremiti Islands, known for the violet tones that appear in the water and rock in the right morning light.
It is usually seen from the water as part of a coastal boat trip around the islands.
Grotta delle Viole is a sea cave in the Tremiti Islands, known for the violet tones that appear in the water and rock in the right morning light.
It is usually seen from the water as part of a coastal boat trip around the islands.
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