This is a place where Guru Rinpoche (Guru Padmashambhava) was in Sadhana. There is a place to sit and meditate. You can go into meditative states here effortlessly.
How to Get there
The Spring of Enlightenment is located 1 kms hike inside the forest in Thaha. The path starts from the Gate of Rishishwar Mahadev.
Map: https://goo.gl/maps/iN9bebDJ19SozP2X7
To the west of the Kathmandu Valley, beyond the winding roads of the seemingly endless Pahari hills, there lies a realm in which the very stones are etched with Guru Padmasambhava’s heroic efforts to curb the savage spirits of the land. The Mahaguru’s journey to Tibet brought him through this place, and he displayed incredible feats here as he brought down haughty demons and led them to the Dharma. Here, known as Kyechok Tsulzang, Eminent Noble Being, he left an outpouring of power and blessings that remain available for everyone to this day. The sacred spring itself is at the heart of this site, as we can tell from its name, Chumik Changchup, Spring of Awakening.
About Padmashambhava
Padmasambhava The Lotus Born, is said to have transmitted Tantric Buddhism to Bhutan and Tibet in the 8th century. In those lands he is better known as Guru Rinpoche (“Precious Master”) or Lopon Rinpoche, where followers of the Nyingma school regard him as the second Buddha. He said: “My father is the intrinsic awareness, Samantabhadra. My mother is the ultimate sphere of reality, Samantrabhadri. I belong to the caste of non-duality of the sphere and awareness. My name is the Glorious Lotus Born. I am from the unborn sphere of all phenomena. I consume concepts of duality as my diet. I act in the way of the Buddhas of the three times.” He was born into a monarchic Brahmin family. His Pureland Paradise is Zangdok Palri (the Copper-coloured Mountain). He is further considered an emanation of Amitabha Buddha and traditionally even venerated as “a second Buddha”.
Source
https://www.nekhor.org/padmasambhava/nepal/chumik-changchup
http://www.tamqui.com/buddhaworld/Padmasambhava