Rocks and Underground river in a Cave wallpaper

Lod cave in Sappong, Northern Thailand

underground river in a dark stone cave

Cenote Dos Ojos in Quintana Roo, Mexico. People swimming and snorkeling in clear blue water. This cenote is located close to Tulum in Yucatan peninsula, Mexico.

Jomblang cave known as light of heaven, located in Semanu, Gunung Kidul Regency. It’s a 90-minute drive from the center of Yogyakarta.

Landscape of entrance of Aggitis river cave (Maaras Cave). The largest and one of the most spectacular river caves in all of Europe; situated in northern Greece, near the town of Drama.

Amazing landscape from the old water mill of the entrance of Aggitis river cave (Maaras Cave). One of the largest and most spectacular river caves in all of Europe. Drama. Macedonia. Northern Greece.

Underground Lake.. Cave of Tapolca, Hungary near Balaton lake. System of underground caves situated in the heart of the city. Boat trip

A boat with tourists sails along the emerald river to the entrance to a dark cave. Sheer karst cliffs rise above the water. Palm trees by the shore. Philippines. An underground river. Puerto Princesa.

Sheer karst cliffs rise above the turquoise river. A boat with tourists floats into the dark entrance of the cave. Green tropical vegetation. An underground river. Philippines. Palawan.Puerto Princesa