Oniore Waterfall and Toba First Cave Natural Monuments (Georgian: ოჩხომურის ჩანჩქერის ბუნების ძეგლი) is a combination of waterfall and cave at 680 m above sea level in Martvili Municipality, Samegrelo-Zemo Svaneti region of Georgia.
| Oniore Waterfall and Toba First Cave Natural Monuments | |
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IUCN category III (natural monument or feature) | |
Oniore Waterfall | |
| Nearest city | Martvili |
| Coordinates | 42°28.643′N 42°27.520′E |
| Area | 0.33 km2 (0.13 sq mi) |
| Governing body | Agency of Protected Areas |
| Website | ონიორის ჩანჩქერისა და ტობის პირველი მღვიმის ბუნები ძეგლები |
The cave is produced in the limestone. The excavation measured 12m X 5 m is opened along the shaft. The underground waterfall is about 70 m from the cave entrance, where the height of the ceiling is 30 meters. The width of the tunnel is 12-15 m. The waterfall is about 67 m high.[1]

Protected areas of Georgia (country) | |
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| National parks |
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| Strict Nature Reserves |
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| Managed Reserves |
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| Protected Landscapes |
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| Natural Monuments |
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