Krem Liat Prah is the longest natural cave in South Asia. Prah (Krem is the Khasi word for "cave") is one of approximately 150 known caves in the Shnongrim Ridge of the East Jaintia Hills district in the state of Meghalaya, northeast India. Explored and surveyed as part of the ongoing Abode of the Clouds Expedition project, its current length of about 34 kilometers will likely be increased as nearby caves continue to be connected. Liat Prah's dominant feature is its enormous trunk passage, the Aircraft Hangar.

Among all the explored caves, the most prominent one is Krem Liat Prah caverine system. This is not only the longest cave of Indian subcontinent, but has also secured its position in the world'smap of longest caves.

Krem Labit Cave

Several years before the initial exploration of the systemactually began, the members of Caving in theAbodeof the Clouds Projectwas informed of the likelihood of a massive cave system that would traverse the Shnongrim Ridge..The information came first from a coal and limestone extraction contractor, Mr. Larsing Sulian, from the Sutnga area, who was well aware with the Shnongrim Ridge and surrounding areas and had an amazing amount of information about the local caves. In the year, 2000 when Mr. Larsing was assisting the exploration team in conducting a reconnaissance of the Shnongrim Ridge area he outlined his belief thatthere is a huge cave system that drained water from the North West side of the Ridge through to the Liten Valley on the South/South West side of the Ridge.

In the year 2004 a cave, Krem Um Im situated on the South West flank of the Shnongrim Ridge, was originally explored in 2002 and 2003, extended from 1.2km in length to 3.2km.. During the course of the exploration few more caves were also found to be connected to Krem Liat Prah.