Circular crater of Vila Franca Islet in azure Atlantic, Azores

vila franca islet azores protected nature reserve sao miguel azure atlantic circular crater marine bird habitat ilheu de vila franca portuguese archipelago submerged volcano vila franca do campo circular crater nature reserve portugal azores tourism geological formations lagoon portuguese boquete farilhao tourism geology surtseyan volcanic cone seascape island phreatomagmatic explore azores sightseeing azores attractions drone aerial nature volcanic travel scenic outdoors pristine important bird area uninhabited round ocean marine blue top down birdseye view