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Karst Caves and Caving in Southern Italy
A karst landscape is an underground freak show (pictured) formed from the dissolution of soluble rocks including limestone, dolomite and gypsum. The word, itself, is the German name of Kras, an area in Italy and Slovenia, where it is called Carso and where the phenomenon was first studied. Karst areas are characterized by drainage holes on the surface, underground caves and drainage systems and collapses triggered by the development of underlying caves. In popular perception, the best known features of karst areas are stalactites and stalagmites. The thing on the right is neither-nor—it's a "flowstone"; technically, all such delicacies are called speliothems. There are in southern Italy a number of fetching
Image below is NOT a show cave!! But you canFirst, in the Campania region of Italy (of which Naples is the capital), there are two primary karst regions: The Matese and the Cilento, both characterized by extensive karst formations in caves, some of which have been made safe even for casual tourists and are what we call “show caves”—guides take you in and lead you around. The Matese massif is about 70 km (45 miles) northeast of Naples. It contains the Matese Regional Park, one of the protected natural areas in Campania; the park has been in existence since 2002. Lake Matese (image, left) is the highest karst lake in Italy and is at the foot of Mt. Miletto (2050 m/6200 feet) and Mt. Gallinola (1923 m/6000 feet). (A karst lake is usually at higher altitudes and is fed by snow and rain run-off from surrounding mountains and by an extensive flow of undergound water.) The Matese Regional Park has an area of about 330 sq.km/130 sq.miles), at the heart of which is not only the lake but the very scenic surrounding valley. Beneath the lake is a vast underground waterworld of ponds and streams typical of many karst areas. The area is relatively little-known or, at least, little frequented but gaining “speleo-credibility” with time and good press.
do this, too, if you are so inclined. The photo was
taken quite near the lake shown on the left.
The Cilento area south of Salerno contains the Alburni massif; it is is a relatively small part of the entire Cilento and Vallo di Diano National Park in the province of Salerno. The massif (or table land, or plateau) rises like a rectangular loaf of bread 10 km wide by 21 km long. The long axis runs SE to NW; the NW flank is a wall of dolomite peaks of up to 1800 meters in elevation and faces across the plain of Paestum to the city of Salerno, 40 km distant. (The sedimentary carbonate rock, dolomite, of course, has given its name to the entire and very spectacular mountain range in northern Italy and to similar smaller formations that then term themselves the This-Dolomites or That-Dolomites. The Alburni massif may be referred to, for example, as the Campanian Dolomites.) The loaf/massif slopes slightly down as it runs back to the SE and then drops off suddenly onto the plain of the Vallo di Diano. The massif sits atop two prominent show caves, the Castelcivita grotto (with the delightful fellow seen in the image, right) and the Pertosa Caves, both of which host casual tourism as well as more intense visits.
South of Campania along the Adriatic is the Puglia (Apulia) region, where karst speleology is well represented by the well-known Castellana Grottoes. The Castellana Caves are a remarkable system located in the province of Bari. They are one of the most famous show caves in Italy. The main cave and entrance (image, left) is named "La Grave," which doesn't mean a place of burial in Italian, but rather "grave" in the sense of solemn. Others are named Black Cavern, White Cave and Precipice Cavern. The visit to the Grotte di Castellana is done with the help of tourist guides. The cathedral-like “Grave” is the first and biggest of all the caves and the only one with external access; it is 100 meters long, 50 meters wide and 60 meters deep. Needless to say, it's a scary place, if you are so disposed, and legends abound, such as the presence of the souls of those who have thrown themselves down into the Grave, so maybe it does mean 'place of burial', after all. The Castellana caves are a very few km from the recently discovered (2012) Grave Rotolo - Abisso Donato Boscia. Actually the two may be connected, and that is the direction of current research. The Abisso Donato Boscia goes down to a depth of 312 meters and has now been declared to be the deepest cave in Puglia. It has an underground river and lake. As of the present, it seems open only to those who really know what they're doing. If that is you, have fun. Puglia also contains the "heel" of the Italian boot, an area called the Salento. It is an area particularly rich in caves, some of which are developed show caves. Others are important for anthropological reasons because they contain evidence of very early human presence, some of the oldest in Europe. (See Early Humans in S. Italy.)
In the Calabria region of Italy, most of the karst caves are concentrated in the northern part of the province along the Tyrrhenian coast and at the border with the region of Basilicata and the Pollino massif. Those areas are in the province of Cosenza. The deepest and most developed ones are near the town of Cerchiara di Calabria (the Bifurto Abyss, the Grotto of di Serra del Gufo, the Chasm of Balze di Cristo); then, near Cassano allo Ionio (the Sant'Angelo grotto complex, the Scoglio Grotto of the Scoglio); near Morano Calabro (the Grotto complex of San Paolo-Ramo del Fiume, image, right); and near Orsomarso (the Frassaneto Grotto). Farther south, however, in the province of Crotone, there are other noteworthy examples near the towns of Verzono and Caccuri. (image from enzodeimedici.it)
The region bordering on Campania dirctly to the south along the coast is Basilicata, the older term for which is Lucania, the home of a pre-Greek and pre-Roman Italic people. The regional registry that keeps tabs on the geological wonders of karst caves in that area currenty shows over 200 of them, about half of which are near Maratea with the others widely spread around. About half of those near Maratea are marine karst caves; that is, the entrances are on the coast. The entrances may be above sea level but very often are submerged or partially submerged by seawater. It is potentially dangerous sport diving. The deepest karst cava in Basilicata is the Grotto of Castel di Lepre near Marsico Nuovo at 146 meters (from the entrance to the bottom). The most extensive network of caves is the Grotto of the Dragon of Maratea, in which there are two kilometers of galleries and tunnels to get lost in. If you really want to go into that one, you have to arrange ahead and go with an expert. Some of the others, such as the Grotto of Wonders at the marina of Maratea give less strenuous, regular tours.
Coastal Caves in Salento (Puglia) added March 8, 2016
Salento is the name of a geographic area (not an official administrative region or province - more on historical names here) at the southern end of the region of Apulia (Puglia - darkened area on map, right) in Southern Italy. It is a sub-peninsula of the Italian peninsula, itself, and is often described as the "heel" of the "boot" (with a length of about 135 km/85 miles). The area extends into three provinces of Puglia: Lecce, Brindisi amd Taranto. The west coast is on the Ionian Sea; the entire east coast (down to the bottomost point of the heel) is, by convention, still the Adriatic.
The east coast, from Otranto down to Santa Maria di Leuca (the bottom-most tip of Salento) is limestone and is marked by significant coastal caves, all of which are interesting and some of which contain prehistoric cave graffiti. The most notable ones start near the town of Castro, 15 km south of Otranto, and extend down the coast. Some of them are organized "show caves" (guides take you in, guides bring you out), others are less so and you may explore them on your own.
Among the many near Castro, two stand out: the Romanelli Grotto and the Zinzulusa Grotto (pictured, right). Romanelli was discovered more than a century ago and is now viewed as one of the most significant finds of prehistoric human habitation. Zinzulusa, one km south of Castro, takes its name from the dialect word zinzuli—shreds or tatters—the appearance given by the array of stalactites hanging down at various points. You can go in only for about 50 meters; the rest is reserved for the protected bat species. Locals have known about the cave since the late 1700s. The cave was exploited for the bat guano (used as fertilizer) between 1906 and 1950. Some other Salento caves further south near the very tip are -
Grotta Vora, near Capo di Leuca, known for its cathedral-like spaciousness and intriguing light effects;
Coastal Caves of the Gargano Spur added March 9, 2016
In my hurry to get down to the bottom of the heel of the boot (item, above) I overlooked the Gargano "spur", one of the most conspicuous bits of Italian geography, jutting out, as it does, into the Adriatic, some 275 km/170 miles north of the southern tip of the heel, but still in the region of Puglia. (There is a separate entry here on the Gargano.) As the image indicates, the entire spur, this mini-peninsula, is now the Gargano National Park. If you move out towards the tip of the spur towards the green patch marked Foresta Umbra and imagine a vertical line from north to south drawn down through, say, the "F" in Foresta, coast to coast, that "tip" is about 50 km/30 miles around by sea. It's a marvelous boar ride and a caver's delight, particularly as you move south past the coastal town of Vieste at the extreme eastern tipGood caving!
top three photos: from Napoli Underground
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