The Gupteshwor Mahadev Cave (known in the local tongue as Bhalu Dulo) is recognized as one of the longest caves in Nepal with a length that exceeds 2,000 meters. The cave sits across Davi's fall, and inside the cave, one can hear the thundering sound of water. As per the local beliefs, the cave was said to be discovered in the 16th century. During those times, there wasn’t any sort of modern-day decorations that you see today. The main entrance of the cave was only constructed in 1991 AD. The exterior of the cave is furnished with a huge brown arch, and as you enter it, there are numerous souvenir shops if you are interested to shop some something, you see a statue of Lord Vishnu in a sleeping position, and right in front of the ticket counter, there is a concrete balcony and a spiral staircase. As you head down, you can see plastered artworks, which some say tend to go on the erotic side. This is derived from the other paintings that are portrayed in the Kathmandu valley. The main cave is divided into two chambers. The second section of the cave is closed during the monsoon season in order to prevent people from drowning from the high-water levels. As you make your way to the inner parts of the cave, you can see small shrines, which are dedicated to Lord Shiva.