A short drive away from Shillong, on a road that branches away from the main road to Sohra, the sacred forest at Mawphlang is a must visit for those who like nature, and being amid nothing but a bounty of green forests and surprising flora and fauna.
The forest is abundant with surprises and hidden treasures, so I'd advise taking a guide the first couple of times, because there's so much here that you'd miss out on, if they aren't pointed out to you.
There are three forests here, side by side, each nurtured and protected by three successive clans/people that ruled, and it is said that the coronation of the Kings happened here in front of a monolith at the centre of the second forest, after completing certain rituals and sacrifices. (the guide will tell you more!)
The place is large, and the paved path ends about 50 metres inside, after which you have to follow walking paths created by thousands of visitors before you. Even these are covered with branches, leaves, and other natural vegetation, so tread carefully, and observe your route if you're without a guide, as you could get lost here.
You will see lots of varieties of orchids, mushrooms, roots, trees, bats, frogs, and I am told there are other wild animals here, although I have never seen them. There are also very large and rare trees here, like the Shillong Pine, which is a must-see.
Why is there so much abundance of nature here? Because these places are protected by law and even the spirits as believed by the locals, and if you take anything out of this place, even a leaf, misfortune will come upon you! That belief makes everyone adhere to the rules of not damaging or taking away anything from here.
My advise, take your time, walk, rest and absorb nature and discover a sense of calm you won't find anywhere else. Its one of the quietest, most calming places I've been to in my life!