Wednesday, June 2, 2021

The Beauty of Blue Grotto Cave Tour on the Italian Island of Capri

Italy is one of the most popular countries for tourists to visit. Tourist attractions are not only limited to historical buildings of Roman heritage. We can not only visit big cities like Milan, Rome to Pisa, but also to the Island of Capri.

Capri is an island in the sea off the Sorrentine Peninsula, in the southern part of the Bay of Naples. The island has been a major part since the Republic of Rome. Capri is located in the Campania region of the Province of Naples. Its main largest city is Capri.

​One of the famous tourist attractions on the island of Capri is the Blue Grotto aka Blue Cave, an underwater cave that glows blue when exposed to sunlight. Besides being called the Blue Grotto, the cave is also known as the Grotta Azzurra in Italian.

The Blue Grotto is a sea cave on the coast of the island of Capri, southern Italy. The sunlight that passes through the underwater cavity and shines on the sea water creates a blue reflection that illuminates the cave. The cave extends about 50 meters into the cliffs at the surface, and is about 150 meters (490 ft) long, with a sandy bottom.

Reported by Atlas Obscura, in Roman times, the Blue Grotto Cave was a private swimming pool belonging to Emperor Tiberius, who had moved the capital of the Roman Empire to the island in 27 AD.

Emperor Tiberius is also remembered in Capri for his legacy of a luxurious residence at Villa Jovis. During the time of Emperor Tiberius, the cave was decorated with several statues, as well as a resting area around the edge of the cave. Three statues of the sea gods Neptune and Triton were recovered from the interior of the cave in 1964.

However, now the statue has been moved and put on display in a museum in Anacapri. In addition to the discovery of the statue, inside the cave section there are also seven other locations of statues that were discovered in 2009.

When you enter the cave, you will be greeted by the blue water that is there. This blue color is caused by the reflection of sunlight that penetrates the Mediterranean Sea which makes it seem like it glows.

The Blue Grotto is one of the few sea caves around the world that is flooded with brilliant blue or emerald light. The quality and nature of each color is determined by the unique combination of depth, breadth, water clarity and light source.

In the case of the Blue Grotto, the light came from two sources: a narrow arched entrance, and a hole roughly ten times as large as directly below it, separated by a band of stone between one and two meters high. Because it is further from the surface, less light passes through the lower opening, but its depth and size allow it to be the main source of illumination of the cave's water.

As light passes through the water into the cave, the red reflections are filtered out and only blue light enters the cave. The objects placed in the water of the famous cave are silver in color. This is caused by tiny bubbles, which cover the outside of the object when placed under water. The bubbles cause light to refract differently from the surrounding water and give off a silver effect.

Partly due to the blinding effect of light from the opening in the water, it is impossible for visitors on one of the rowboats to identify the shape of the larger hole, the bar line separating the two holes, or the nature of the light source, other than the general awareness that light comes from below, and that the water in the cave contains more light than air. A visitor who puts his hand in the water can see it "glow" eerily in this light.

For tourists who want to see the beauty of this cave, the Blue Grotto can be reached by bus from Anacapri. After that, tourists can continue the journey by boat from the port of Marina Grande.

Unfortunately, access to the Grotto will be closed in the windy season or high waves, due to the high water there. Tourists are also not allowed to swim in the cave area, for safety reasons and to maintain the clarity of the water in the cave.


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