"Twins Cave," is a karst cave created by a long process of dissolving limestone bedrock by water, a process that created many stalactites therein.
In the 19th century, this cave was designated by the residents of the region "Um A-Tawamin Cave", meaning the Twins Cave. The cave is located on the northern bank of Nahal Ha-Ma'ara, in the Nahal Ha-Ma'ara reserve, which is located on the western fringes of the Jerusalem hills.
The site is closed to visitors from the beginning of November until the end of March, and the goal is to protect the population of endangered bats that are in hibernation.
It is worth paying attention to the flora as you walk around in a variety of colors (in accordance with the months of the year), winter and spring blossoms of anemones, cyclamens, aphids, alcea setosa, cistus, sarcopoterium, red everlasting, wild carrot, echium judaeum, origanum syriacum, echinops, and more.
How to get there?
From the majority of the country, drive on Route 38 (Sha'ar Hagai - Beit Guvrin Junction) until the traffic lights after the Beit Shemesh police station, at the lights turn left to the Beit Shemesh bypass road (Route 3855). Continue on the road and pass five traffic circles, the last square is Zanoach Square. Continue driving about 2 km until you turn left to the Shafir quarries and make a U-turn and go back north, drive about 1 km until the brown sign "Twin Cave" and turn left onto a dirt road, travel about half a kilometer to the parking lot and park the vehicle. From here continue the route by walking about another kilometer on the red trail marking up to the mouth of the cave.