Natural Monument
Oniores Waterfall and Tobi First Cave Natural Monument
Attraction: The natural monuments complex comprises Toba I Cave and the Oniores Waterfall emerging from it, creating a rare and spectacular natural attraction.
The cave was formed in Upper Cretaceous bedded limestone. Its entrance (12 × 5 m) opens along a cliff. At a distance of 70 meters from the entrance, there is a 21-meter-high underground waterfall, where the ceiling height exceeds 30 meters. In some sections, the tunnel reaches 12–15 meters in width. The underground river emerging from the cave forms the 67-meter-high Oniore Waterfall just 15 meters from the cave.
Location: Martvili Municipality, northeast of the village of Meore Balda, in the Toba Valley, a right tributary valley of the Abasha River, 680 meters above sea level.
Coordinates: N42 28.643 E42 27.520
Access: The nearest major settlement to the natural monuments is the city of Martvili. Martvili is located 280 km from Tbilisi; travel time is approximately 4 hours.
Martvili – Village of Pirveli Balda: 9.4 km; travel time approximately 20 minutes.
Village of Pirveli Balda – Oniore Waterfall and Toba I Cave Natural Monuments: 6.1 km; travel time approximately 1 hour and 30 minutes (marked hiking trail).
Accommodation: The most convenient option for overnight accommodation is to stay in the city of Martvili, where accommodation is available at hotels.