
Photo: Frédéric de Goldschmidt www.frederic.net, CC BY 3.0 via Wikimedia Commons
The Blue Grotto is a beautiful cave at the water's edge with a tiny opening to the sea that opens and closes with the tide, used as a bath since the Roman times. The entrance is small and depending on the tide there is just enough space for only a small rowboat to get through. Dark at the entrance, one has to enter 20-30 yards and then turn around to view the beautiful sight of the light from the entrance flowing through the water lit turquoise from below by the sun. Hence the sight of the "Blue Grotto". You'll be amazed at the turquoise hues glimmering in the water and against the rocks. The grotto often closes due to tides and waves, and it may take a while for your boat to get in, with many other boats trying to do the same. It may also be advisable to check the tides beforehand to avoid disappointment. The trip on the passenger boat from Marina Grande to outside the Blue Grotto cavern costs about €18, then €14 per person (Oct 2019) for the rowboat to take you in through the tiny entrance which includes the entrance ticket to the cave and demands from the oarsman for a tip, with a round trip of about 1 to 3 hours. There are also cruises that circumnavigate Capri and stop at the Blue Grotto allowing passengers to board a row boat and enter the grotto. You can also take a bus to Anacapri, walking 100 m (inquire locally), then taking another bus to the Grotta Azzurra. This has the advantage of cutting on the cost from Marina Grande, as well as placing you near Anacapri where much else is to be seen. The grotto is open from 09:00 to one hour before sunset daily. If the grotto closes suddenly (hopefully while you are outside it), consider an €18 cruise around the magnificent Faraglioni Rocks instead. The Blue Grotto is one of those 'love it' or 'loathe it' places. At peak times the queue of tour boats and those arriving by land can be 1 to 2 hours long and the total time in the cave is only a few minutes. Some will wonder what all the fuss is about (it's a cave with a small pool of blue water) and will begrudge the cost and time involved in seeing it. Others adore the place.
The Blue Grotto is a sea cave on the coast of the island of Capri, southern Italy. Sunlight shining through an underwater cavity is reflected back upward through the seawater below the cavern, giving the water a blue glow that illuminates the cavern. The cave extends some 50 metres (160 ft) into the cliff at the surface, and is approximately 150 metres (490 ft) deep, with a sandy bottom.
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The office is on the pedestrian street near Piazza Vittorio, open Monday to Saturday 09:00-15:00, closed Sunday, often closed November to Easter.