Best Sea Cave

The Grotte de Cosquer is a Paleolithic cave near Marseille, France, discovered in 1985 by diver Henri Cosquer. The cave contains prehistoric art including paintings and engravings dated to around 27,000 years ago, with some works created during the Gravettian period. The cave's entrance is now subme...

Algar de Benagil, also known as Benagil Cave, is a sea cave on Portugal's Algarve coast, located near the village of Benagil. The cave features a large domed chamber with a natural circular opening in the ceiling, formed by marine erosion. Sunlight enters through this opening, illuminating the inter...

Fingal's Cave is a sea cave on the uninhabited Scottish island of Staffa in the Inner Hebrides. The cave is formed from hexagonal basalt columns, part of the same volcanic formation as the Giant's Causeway in Northern Ireland. The cave extends approximately 69 meters into the island, with a natural...

The Grotta Azzurra, or Blue Grotto, is a sea cave on the island of Capri, Italy, known for the blue luminescence inside its main chamber. This effect occurs when sunlight enters through an underwater opening and reflects off the white limestone seabed, illuminating the water from below. The cave was...

Franchthi Cave is a prehistoric cave site overlooking the Bay of Argos in the Argolid peninsula of Greece, with human occupation spanning roughly 38,000 years from the Upper Paleolithic through the Neolithic. Excavations revealed a transition from hunter-gatherer subsistence to early farming, as wel...

Paviland Cave is a limestone sea cave on the Gower Peninsula in south Wales, famous for the 1823 discovery of an ochre-stained human burial popularly called the 'Red Lady of Paviland.' The burial is in fact that of a young adult male, associated with the Gravettian culture and dating to approximatel...

Pinnacle Point is a series of coastal caves and rockshelters near Mossel Bay on the southern Cape of South Africa, containing Middle Stone Age deposits. Excavations directed by Curtis Marean have documented evidence of systematic shellfish harvesting dating to approximately 164,000 years ago, among...

The Grotta di Tiberio is a natural sea cave at Sperlonga on the coast of Lazio, Italy, incorporated into a Roman villa attributed to Emperor Tiberius (reigned 14–37 CE). The cave was used as a summer triclinium (dining hall) and contained monumental Hellenistic-style marble sculptures depicting scen...

Cathedral Cove, known natively as Te Whanganui-A-Hei, is a prominent sea cave and coastal arch located on the Coromandel Peninsula of New Zealand's North Island. The geological formation sits within the Te Whanganui-A-Hei Marine Reserve, a protected area established in 1992 to preserve local marine...

Painted Cave is a large marine cavern located on the northwest coast of Santa Cruz Island within California's Channel Islands National Park. Extending approximately 400 meters into the cliffside, it is recognized as one of the longest and deepest sea caves in the world. The cave's interior walls are...

The Pictured Rocks Sea Caves are natural geological formations situated along the Pictured Rocks National Lakeshore on Lake Superior in Michigan's Upper Peninsula. Carved by wave action into the colorful Munising sandstone cliffs, the caves feature striking vertical streaks of iron, copper, and mang...

Emerald Cave, also known as Tham Morakot, is a sea cave located on Ko Muk (Koh Mook) in Trang Province, Thailand. Access requires swimming or kayaking through a narrow, partially submerged tunnel that opens into a collapsed interior chamber. The enclosed lagoon is surrounded by limestone cliffs, and...

Die Kelders Cave is a Middle Stone Age archaeological site located near Gansbaai in South Africa's Western Cape province. Excavations have yielded early modern human remains, stone tools, and evidence of symbolic behavior dating to approximately 70,000 to 80,000 years ago. The site has contributed t...

The Grotta della Poesia is a large coastal sinkhole and sea cave located near Roca Vecchia in Puglia, Italy. It is a significant archaeological site featuring over 3,000 Bronze Age and Iron Age rock engravings, representing one of the most important concentrations of Messapian inscriptions in Europe...

The Blue Grotto, known locally as Il-Hnejja, is a complex of sea caves located on the southern coast of Malta near Wied iż-Żurrieq. The caverns are renowned for their striking azure waters, an effect caused by sunlight reflecting off the pale, white seabed and illuminating the submerged cave walls....

The Grotta Azzurra di Palinuro is a sea cave located along the Tyrrhenian coast of Campania, Italy, near the town of Palinuro. It is geologically notable for its submerged entrance, which acts as a filter for sunlight, creating a vivid blue luminescence inside the cavern. The cave is accessible only...

The Grotta del Cavallo is a limestone sea cave located on the Salento peninsula near Lecce in Puglia, Italy. It is an important Paleolithic archaeological site known for its Uluzzian culture deposits. In 2011, researchers reassigned two teeth found in the cave to anatomically modern humans (Homo sap...

Smoo Cave is a large sea cave and geological formation located near the village of Durness in Sutherland, Scotland. The cave features a unique combination of marine and freshwater erosion, characterized by a massive tidal sea entrance and a collapsed sinkhole in its main chamber. Inside, the Smoo Bu...

The Rosh HaNikra Grottos are a network of coastal sea caves located in steep white chalk cliffs at the northernmost tip of Israel's Mediterranean coast, bordering Lebanon. The caverns were formed over thousands of years by the continuous action of waves striking the soft limestone rock. Visitors acc...

The Grotta del Bue Marino is a large sea cave located on the eastern coast of Sardinia, Italy. Historically, the cave served as a refuge for the critically endangered Mediterranean monk seal, which is locally known as the sea ox. The interior features significant geological formations, including sta...

Hang Sừng Sốt, widely known as Surprise Cave, is one of the largest and most visited limestone caves in Ha Long Bay, Vietnam. The cave features a vast interior divided into three main chambers, formed over millions of years by water erosion. Inside, visitors can observe massive stalactite and stalag...

Sea Lion Caves is a large, naturally formed sea cave system located on the Oregon Coast near Florence, United States. It functions as a year-round haul-out and rookery habitat for wild Steller sea lions. The cave is accessible to the public via an elevator installed in the surrounding basalt cliffs,...

Grotta Zinzulusa is a partially submerged sea cave located along the Adriatic coast near the town of Castro in Puglia, Italy. The cave is characterized by prominent karst limestone formations, including extensive stalactites and stalagmites. It is environmentally significant for its ecosystem, which...

Peers Cave is a prominent rock shelter and archaeological site located above Fish Hoek in Cape Town, South Africa. Excavated in the 1920s by Victor Peers and his son Bertie, the site is famous for yielding the skeletal remains of "Fish Hoek Man," a human dating back approximately 12,000 years to the...

The Cathedral Caves are a pair of large sea caves situated on the rugged coastline of the Catlins in the South Island of New Zealand. Carved into limestone cliffs by the Southern Ocean, the caves are notable for their towering ceilings and interconnected passages. Visitors can only access the site o...

The Cape Greco Sea Caves are coastal limestone formations located at the southeastern tip of Cyprus near Ayia Napa. Carved by continuous wave action against the coastal cliffs, the site features a network of caves, arches, and shallow pools. They are situated within the Cape Greco National Forest Pa...

The Coves d'Artà are a series of limestone caves located on the eastern coast of Mallorca, Spain, near the town of Canyamel. The cave system features massive interior chambers reaching up to 45 meters in height, heavily decorated with stalactites and stalagmites. Artificial lighting is used to highl...

The Grotte d'Hercule, or Cave of Hercules, is an archaeological and geological sea cave located approximately 14 kilometers west of Tangier, Morocco. The cave features two openings: one facing the land and a larger one facing the Atlantic Ocean. The seaward opening is notable because its shape resem...

Thiên Cung Cave, also known as the Heavenly Palace Cave, is a prominent limestone grotto situated on Dau Go Island in Halong Bay, Vietnam. Discovered in 1993, it is renowned for its expansive, highly decorated interior chambers filled with stalactites, stalagmites, and cascading stone draperies. The...