Keibul Lamjao National Park

Listen first. A soft creak of reeds, the slap of water against a wooden boat, and somewhere far off, the call of a bird you cannot see. Under the green carpet in front of you there is not solid earth but water. The ground here floats. If you could step onto it, it would give a little beneath your feet, like a thick mattress resting on a lake.

Welcome to Keibul Lamjao National Park, in the state of Manipur, in the far northeast of India. This park is widely described as the only floating national park in the world. It sits in the southern part of Loktak Lake, the largest freshwater lake in northeastern India. Much of what looks like meadow around you is a living raft, drifting on the water below.

These rafts have a local name: phumdis. A phumdi is a thick mat of grasses, roots, soil, and decaying plant matter, knitted together over many years. Some are thin and fragile. Others are dense enough to carry the weight of a deer, or even a small hut. Through the seasons they rise and sink a little with the water. In the dry months, the roots can touch the lake bed and draw nutrients from the mud. When the water rises again, the mats lift and float free.

Now look for the reason this park exists at all. It is a deer called the sangai, also known as the brow-antlered deer. The male carries long antlers that sweep forward from the brow in a wide arc. The sangai is the state animal of Manipur, and it lives naturally almost nowhere else on Earth. This small patch of floating grassland is its last wild home.

Here is the first surprise. In the middle of the twentieth century, the sangai was believed to be extinct. By the early 1950s, many people assumed the last of these deer had gone. Then, in 1953, the naturalist Edward Pritchard Gee found a small surviving group here in the marshes of Loktak. That rediscovery set off a long effort to protect them. The area became a sanctuary, and in 1977 it was declared a national park.

Watch how the sangai moves, if you are lucky enough to see one. The phumdis are soft and uneven, so the deer steps carefully and springs lightly from one firm spot to the next. Because of this graceful, bouncing movement, people often call the sangai the dancing deer. It is not a dance at all, of course. It is a survival skill, learned on ground that never stays quite still.

The deer also carries a place in Manipuri culture. Locals say the sangai is a living bond between people and nature, and older stories of the Meitei people, the main community of the Manipur valley, give the deer a spiritual role. These are folk traditions rather than written history, but you will feel them in how people here speak about the animal. To many Manipuris, losing the sangai would mean losing part of themselves.

The sangai is not alone out here. The park is also home to hog deer, otters, and a wide range of water birds, especially in the cooler months when migratory species arrive. Herons stand very still at the edges of open water. Small birds move through the tall grasses. Fish move beneath the phumdis, and those fish feed both the wildlife and the families who live around the lake.

Those families are a large part of this landscape. Around Loktak, fishermen have long built small huts on the floating mats, called phumsangs. They also shape phumdis into rings to create circular fish enclosures. You may see narrow wooden boats slipping between the mats, poled along by one person standing at the back. This is a working lake, not only a protected one, and that balance shapes everything here.

Here is the second surprise, and it is a serious one. The floating world is fragile. In the 1980s, a barrage was built downstream to supply a hydroelectric project. It holds the water of Loktak at a more constant level through the year. Scientists and conservationists have raised concerns that the phumdis no longer rest on the lake bed in the dry season as often as before. As a result, some mats have grown thinner, and that leaves less safe ground for the sangai.

That is why the deer still needs careful protection today. Its numbers remain small, and a single flood, disease, or fire could do great harm to a population this concentrated. Loktak Lake is also listed as a wetland of international importance under the Ramsar Convention, a global agreement to protect wetlands. Researchers and officials have long discussed creating a second home for the sangai, so the species does not depend on one fragile place.

If the park has a viewing tower open during your visit, climb it and look out slowly. From above, you can see the pattern of the lake more clearly. There are dark channels of open water, pale green patches of floating grass, and low hills rising from the plain at the edges. Early morning is often the best time to watch, when the air is cool and animals are more active. Bring binoculars and patience. The sangai is shy and the grass is tall.

So take a moment before you leave. Look at the surface of the phumdis and remember what lies beneath them. There is water, then roots, then more water, all of it holding up a whole small world. Listen again to the reeds and the boats. As you walk away, notice how solid the ground feels under your own feet, and how rare it is to stand beside a landscape that floats.