All Natural attractions in Alghero

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    Neptune’s Grotto

    Neptune’s Grotto is one of the largest marine caves in Italy, located on the Capo Caccia promontory, inside the Porto Conte Park, about 25 kilometers from Alghero.   SHORT HISTORY Neptune’s Grotto was discovered in the 18th century by a local fisherman, and it became over time a popular tourist attraction. The cave took its name from the Roman divinity of the sea, Neptune. Until 1959, the date of completion of the Escala del Cabirol (Roe Deer Staircase), the stairway which descends to the cave on the rocky wall of Capo Caccia, the Neptune’s Grotto could be visited only from the sea, and therefore accessible only in calm sea conditions.   DESCRIPTION Inside the cave, we can find astounding large rooms with magnificent karst formations, an underground lake and a sandy beach. The Lake Lamarmora is an underground salt lake with a depth of about 9 meters, a maximum width of 25 meters and a length of 100 meters. The lake has a stalagmite column in the center called Acquasantiera (Stoup), due to the receptacles in the upper part which contain fresh water. On the bottom of the lake, there is a formation of stalagmites called Christmas Tree. In the Read more [...]