I checked the route on google earth and I could see a dirt track that leaves Sadous and goes west all the way to the Dahl. We left Riyadh in the afternoon heat and upon arriving at Sadous we took the wrong turn that lead us north west to the dam. We came down south to look for the track that I saw on Google. Fortunately I had some points along the track jotted down so we connected with the first point and off we went. The road was smoother than I expected. It was about 20km from the village to the dahl.
A short ladder resting on a pile of rocks was placed at the entrance which opens to a large chamber –more than 12 meters in diameter- where large piles of fallen rocks gather at one end. We walked around the boulders and found ourselves in front of a long tunnel with well defined semicircular section. The air was very humid and at this point we were sweating like a leaky faucet.