Inside Krem Lymput: Meghalaya’s Historic Bat Cave and the Chambers Beyond Its Hidden Door
Meghalaya is famous for living root bridges, monsoon clouds and limestone country that drops away into some of the longest caves in India. Among them, Krem Lymput near Nongjri in the East Khasi Hills is easy to miss from the road and hard to forget once you are inside. In War Khasi, “Krem Lymput” means Bat Cave. A small hole among jungle-covered boulders opens into 6,641 metres of surveyed passage, a kilometre-long trunk known as the Way to Heaven, and a chamber large enough to earn the name Mughal Room.
The cave sits in the Pynursla belt of the Khasi Hills, on the southern edge of the plateau that falls towards the Bangladesh plains. Official tourism notes place the entrance about six kilometres from Nongjri village. Pynursla itself is roughly 50 kilometres by road from Shillong, usually an hour’s drive depending on weather and traffic. From there the last stretch is village road and then a forest walk of about 30 minutes. Cool air leaking from the rocks is often the first sign that the entrance is close. The hole itself is modest: explorers have described a climb of three or four metres into an opening barely wide enough to feel like a doorway. What follows is not modest at all.
A cave with a written history
Local people have known the cave for as long as anyone can remember. Written records begin unusually early for a Northeast Indian cave. In 1821 the French naturalist Alfred Duvaucel described a “Great Cavern of Boobon” in the Khasi mountains. In 1827 Captain F. G. Fisher, then surveyor of Sylhet, entered with companions, taking twine to measure how far they could go. Contemporary accounts call it the Cavern of Booban, Boobooan or Bhuvan and place it among the lower ranges of the Khasi hills, some miles north-east of old Pandua. In December 1828 Henry Walters and others paced and compass-mapped about 1,500 metres before an abrupt precipice stopped them.
That nineteenth-century work already showed the cave was large, airy and not a dead end. Systematic modern survey came much later. Members of the Meghalaya Adventurers’ Association reached about 1,400 metres in 1993. Mapping in March 1997 produced the first 2.75 kilometres. A February 1998 expedition pushed the total to 6,641 metres. Cavers noted something rare: almost every passage they entered already showed signs of earlier, careful visitors. The exception was the Mughal Room, hidden above an uninviting climb in a remote corner. For a brief period after that survey, Krem Lymput ranked among the longest caves then known in India. It has since been overtaken by systems such as Krem Liat Prah in the Jaintia Hills, but it remains one of the more accessible long caves in the Khasi Hills.
What the passages actually look like
The main trunk runs west from the entrance for about a kilometre. Walls and ceiling lean with the dip of the limestone. Average dimensions along this trunk have been put at roughly six metres wide and eight metres high. In the wet season parts of the lower passage can hold water; in the dry months the floor is walkable, with puddles and the odd slippery shelf. At the far end of this trunk a loose, sloping climb is called the Way to Heaven. It is not technical climbing, but it is awkward, dusty and easy to misjudge without a guide.
Above and mostly north of the main passage lie the fossil galleries that give the cave its character. Surveyors named them with a mix of local humour and imperial flourish: Disco, Curtain Shop, Pearl Harbour, Victoria Chamber, Shah Jahan’s Audience Chamber, Ballerina Gallery, Dance Hall. The prize is the Mughal Room, also spelled Moghul Room in expedition notes. It is more than 25 metres wide, 25 metres high and about 75 metres long. Calcite formations crowd the space: stalactites, stalagmites, curtains and bosses that almost block some exits. One continuation, nearly sealed by huge formations, leads to another entrance on the jungle hillside.
Tour operators who now run short cave walks typically keep visitors in these larger halls for 1.5 to 2 hours. The route involves weaving through corridors, stepping over limestone shelves and watching for wet rock. Some sections have soft lighting; a headlamp is still essential. The cave is often described as beginner-friendly compared with vertical systems further east, but it is not a tiled show cave. Shoes need grip. Hands get dirty. Passages interconnect enough that people without a local guide have gotten turned around on the way back from the Mughal Room.
Stone from an ancient sea, and the bats that still use it
The rock is limestone of Eocene age, formed when this part of the plateau lay under a shallow sea. That history shows on the walls. Tourism walks point out fossilised coral. Expedition notes mention a Bone Chamber where vertebrate fossil bones stand out from the limestone. The decorations that fill the high galleries are later work: dripping water dissolving and redepositing calcite over immense stretches of time.
The name is not ornamental. Bats roost here. In March 1997 surveyors recorded a large day roost, estimated in the thousands, in a section they called Glittering Prizes. Specimens collected then included Ia io, a large vespertilionid that was then poorly known from India. The same party noted the smell of fresh guano even on the surface above the lower reaches. The colony was not seen in the same place the following February, a reminder that bat use of a cave can shift with season and disturbance. Large huntsman-type spiders, with leg spans described at 20 centimetres or more, share the dark. Visitors who treat the cave as a photo set rather than a roost put both the animals and the formations at risk.
How a visit actually works
The practical season is mid-October to March or early April, when water levels drop and the forest approach is less treacherous. Monsoon caving here is a poor idea: the lower trunk can flood and the climb becomes worse. A typical organised morning starts at a parking point, continues with a forest hike, a short safety talk and a guided circuit through the main chambers. Some operators add a Khasi lunch by the Wahrew River, about half an hour from the trailhead, with optional boating if time and water levels allow.
From Shillong the route runs south through Pynursla towards Nongjri. Public transport thins out on the last stretch, so a hired vehicle or a pre-arranged guide is the reliable option. Comfortable hiking shoes, clothes that can take dust and mud, a torch or headlamp, water and a willingness to move slowly are more useful than specialist kit. Children with basic fitness and close supervision can manage the tourist circuit; anyone expecting a lit boardwalk will be disappointed.
Why the small entrance still matters
Meghalaya now lists well over a thousand cave locations. Only a fraction are mapped, and limestone mining remains a standing threat to karst country across the state. Krem Lymput is valuable precisely because it is both historic and still alive. It has a paper trail almost two centuries long, chambers that reward a careful walk, fossils that record a vanished sea, and bats that still claim the dark. The entrance will never look like a monument. That is part of the point. A hole in the boulders, a draught of cool air, and then a kilometre of inclined stone leading toward a room the size of a hall: that is the cave as it has always presented itself, first to Khasi walkers with bamboo torches, then to Fisher’s party with their twine, and now to anyone willing to duck in and switch on a lamp.
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