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                                        | Grotta delle Ostriche (Oyster Cave) aka BELTORRENT  Sardinia, Italy
                                                
                                                    
                                                        | Max Depth:  26-30ft/8-9m Average Viz:  61-70ft/19-21m Entry Type:  Boat Bottom Composition:  Sand Aquatic Life:  Might See Something | 
                                                                 Rating: 5.00 by 1 divers Summer:  76-80°F/24-27°C Winter:  56-60°F/13-16°C |  |     |  
                                
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            Grotta delle Ostriche (Oyster Cave) aka BELTORRENT is a boat accessible salt water dive site, located in Sardinia, Italy. This dive site has an average rating of 5.00 out of 5 from 1 scuba divers. The maximum depth is 26-30ft/8-9m. The average visibility is 61-70ft/19-21m.
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https://www.facebook.com/media/set/comments/?set=a.202679009780564.47357.110215399026926From ScubaDiving.com At the Grotta delle Ostriche (Oyster Cave), ogle the same crustaceans that find their way to the fine porcelain plates of the yacht owners cruising the Costa Smeralda — the cave’s walls are encrusted with living and fossil oysters, and you’ll likely see mussels and prawns too.
More info 
http://divescover.com/dive-site/beltorrente-cave/40811PDF 
http://www.caves.org/pub/journal/PDF/v71/cave-71-01-16.pdfGROTTA DELLE OSTRICHE OR BELTORRENTEThe Cavern of the Oysters is the entrance to a huge submerged cavern system. This cave has his name from the ancient fossilized oysters covering some part of the walls This is are a safe and easy first step to get a first impression of the world of cavern and cave diving