Caves of Arta, Mallorca, Spain
Grotta del Fico, Sardinia, Italy
Grotta Su Marmuri, Sardinia, Italy
Stalagmites, Toirano caves, Liguria, Italy
Stalactites, Toirano caves, Liguria, Italy
Interior of the Caves of Arta.
Krizna Jama Cave, Loz Valley, Slovenia
Former limestone cave now exposed to sea
South Africa, Western Cape, Oudtshoorn, Cango Cave 1
Cave stalagmites
Man exploring Krizna Jama Cave, Loz Valley, Slovenia
Montenegro, Cetinje, Lipa Cave
Stalactites and stalagmites, Liguria
Croatia, Island of Krk, Dobrinj, View of Biserujka cave
Alvados caves, Leiria, Portugal
Phong Nha Caves,Dong Hoi,Vietnam
Diros caves, Greece.
Limestone formations in Carlsbad Caverns
Limestone formation in Carlsbad Caverns
Iran, Zanjan Province, Garmab, Katale Khor, Flowstone cave
Stalactites and stalagmites in cave
Limestone formations in Lehman Caves
Stalactites and stalagmites
Underwater cave
Spain, Andalusia, Nerja, Cuevas de Nerja, stalactites
Cave stalagmite
Bermuda, Crystal Cave, Stalagmites and stalactites
View of large ice stalagmites in a cave
Mineral deposits on rocks in a cave, Thailand
Avakas Gorge, Cyprus
Moonrise over Mallorca
Rock formations in Ngilgi Cave
Underwater limestone cave formations
Quartz stalactites
Karst rock formation, Switzerland
Akhurian River
Eroded limestone pinnacles
Vikos Gorge, Greece
Venetikos River, Greece
Admiral's Arch, Kangaroo Island, Australia
Cave formations
New Zealand, Oceania, North Island, Waitomo Caves, Ruakuri Cave, Stalactites and limestone formations in cave
Texture on rocks
Stalactites
Italy, Sicily, Eroded rock formation
Ayia Sophia Cave, Kythira, Greece.
Taipei Area
North of Taiwan
Araganite crystals in limestone cave
Delicate araganite structures in cave
Lava fields, Lanzarote, Canary Islands
La Tarta volcanic outcrop, Tenerife
Coastal landscape
Folded rock strata, Patagonia
Nature Environment
Conical hill
Basalt outcrop
Limestone karst remnant
Eroded and pitted rock
Eroded sandstone
Gilfenklamm gorge, Italy
Pegmatite intrusion into gneiss rock
Rock formations on a cave roof
Meltwater stream
Skala of Vradeto, Greece
Earth Pyramids, Italy
Stalactite
Stalactites in cave
Chandelier Cave, Palau
Stalactites in a cenote
Baredine cave, Croatia
China Savage valley, rocky mountain
Badlands
Pebbles washed ashore
Volcanic landscape of Lanzarote
Malachite Stalactite
Copper mine stalactites
Malachite mineral sample
Eroded Gibber Plain
Layering in Spallanzani Crater, Mars
Geological formations in Rainbow Valley, Chile
White Pockets rock formation, USA
Whites sandstone buttes, Arizona, USA
Rock arch, Joshua Tree National Park, USA
Banded sandstone rock
Physical weathering
Weathered sandstone boulder
Corona sandstone arch
Portugal, Leiria, Flowstone cave Grutas da Moeda
Frost-shattered rocks
Eroded glacial rock formation
Horns of Torres del Paine, Patagonia
Sydney Harbor National Park, New South Wales, Australia
Tertiary limestone
Wave-cut platform from above
Collapsing limestone wave-cut platform
Lulworth Cove, UK, aerial image
Scree slopes
Scuba divers inside the Great Blue Hole, Belize
Carlsbad Caverns, New Mexico, USA
A small mountain range on the rocks
Weathered sandstone sea cliff
A weathered granite boulder
Coastal erosion, Happisburgh, UK
Folded rocks on coast
Cliff with folded rocks
Germany, Bavaria, Franconia, Upper Franconia, Franconian Switzerland, View of Sophienhoehle cave with stalactite
Carlsbad Caverns National Park, New Mexico, USA
Badlands in Asso-Veral, Aragon, Spain
石垣島鍾乳洞内部