The history of Arwah Cave is intertwined with the geological history of Cherrapunji, a region known for its abundant rainfall and limestone formations. Over millions of years, rainwater, slightly acidic due to dissolved carbon dioxide, has seeped through the porous limestone rock, dissolving it and creating intricate cave systems. Arwah Cave is a testament to this process, showcasing the power of water to shape the landscape. Fossilized remains of marine creatures found within the cave walls provide evidence that this area was once submerged under the sea. While the exact date of human discovery and exploration of Arwah Cave is undocumented, local Khasi tribes have likely known about its existence for centuries. In recent years, the cave has been developed and opened to the public, allowing visitors to appreciate its natural beauty and learn about its geological significance. It serves as a reminder of the Earth's dynamic processes and the rich history preserved within its depths.