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Exterior of the cave on Norway coast. Stone wall with dark entrance to cave inside the wood.
A female Asian solo traveler and hiker is hiking in extreme terrains in a mountain in nature.
Entrance to an old mine
Woman and colorful, beautiful marble coming out of mountain discovered more than 300 years ago. 230 million years ago, territory was covered by sea, different sea organism, slowly created limestone, later covered with various rocks, Slovenia.
A tunnel in Brigus Newfoundland. It's a historical tunnel which was built by one man.
The entrance to the impressive ice cave in Scarisoara, in the Transylvania region of Romania. The cave is located at an altitude of 1165 metres above sea level. It is 105 m deep and 720 m long, and the entrance shaft (60 m in diameter and 48 m in depth) gives access through metal stairs to a large chamber, (108 m long, 78 m wide) - The Big Hall. From this point three openings lead to The Church (in front, with over 100 stalagmites), Great Reservation, Coman Gallery and Little Reservation (right). The part that tourists can visit includes the entrance shaft, The Big Hall and The Church, the other chambers,which can be visited only with the agreement of the Speological Institute of Cluj-Napoca, being reserved for scientists. The glacier has a volume of 75000 cubic metres and has average thickness of 16m. The glacier is reflected in the frozen lake inside the cave. Horizontal colour image with copy space.
The Waulpane Limestone Cave, situated near Deniyaya in Sri Lanka's Bulutota town, stands as a captivating natural wonder. Spanning over a kilometer, this ancient limestone cave system is believed to be approximately 500 million years old.
Water is at a very low level, measuring bars are on the walls to either side of the cave
deep pit in the forest, fall
North coastline of Spain in Viavélez,Asturias, Spain. Breaking waves, caves,sea,coastline cliff.
Cave old cave in mountain
Man relaxing walk in nature on weekend. In front of small cave.
Levada from Ribeiro Frio to Portela, irrigation canal on Madeira island, Portugal
Landscapes of Froya Island, off Trondheim, Norway
The largest underground ice cave has n Romania
Natural cave at Cala Luna, a famous tourist destination in Dorgali municipality. Province of Nuoro. Sardinia. Italy.
Exterior of cave in forest on Norway coast.
Grindelwald is a famous little village, well known for skiing in winter and hiking in summer.
Part of the Way of the Cross along the road to the Madonna della Corona shrine near the village of Spiazzi in the Italian Alps.
Landscape photo of the spectacular rock formations at popular tourist destination, The Quarry, near Kiama, a town on the south coast of NSW
The Cueva Palombeira, excavated vertically through the hill that presses against the gorge of La Balouta (in Las M dulas, Le n, Spain), is an artificial tunnel constructed for the evacuation of waste material from the gold mine of Las M dulas. Upon entering a few meters into the cavity, one becomes aware of a tunnel cleanly sculpted into the rock, running along the upper part of the cavern, with vertical walls and an arched ceiling. In contrast, the rest of the cavity is a narrow incision with irregular walls, exposing the structure of an ancient fossilized karst gallery. After the construction of the tunnel during the Roman exploitation period of Las M dulas, the continuous flow of mud and waste materials eroded the initial floor, carrying away the weaker materials that sealed the gallery. These materials consisted of alluvial conglomerates. As a result, the tunnel s exit is located at the highest point of a vast cone of debris that fills the La Balouta ravine and reaches the site of Salas de la Ribera, a locality directly built upon the waste materials from Las M dulas.
Abandoned old lighthouse at the top of Gran Roque - Los Roques island Venezuela
a small cave is surrounded by moss and rocks. The cave is dark and damp, with a musty smell. The moss and rocks give the cave a sense of age and history. The cave is a natural wonder
Golden Bay, New Zealand
Path leading to entrance to the cave in Jura mountains. Black hollow in rock. Mountain tunnel hiking trail, cave enter of dark corridor, Gorges de Court, Switzerland
Man relaxing walk in nature on weekend. In front of small cave.
Cave at the hafod estate
Woman hiking outdoors. Adventures in summer Norway, in the Bergen area.
entrance in Unguru Mare cave, Apuseni mountains, Romania
Large stone tunnel, caverns, of World War I at Batognica, near an Alpine Trail under Mount Krn in Slovenia, memory of Huge Battles between Italians and Austro-Hungarians
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