Are there parts of the Himalayas not explored by humans?

Once you are not hungry, the himalayan area is the most beautiful place to be.

And what do you see in those parts?

You see such places where you have herbs which grow, which can keep your hunger at bay for a long time. You see such beautiful streams with clear water flowing, which has herbs already infused in the water. You sometimes see great yogis. Unknown that there are more unknown great yogis than the known one. There are unknown ones who are greater than anything that you can think of.

There are certain kriyas and certain yogas that actually change your physical appearance heavily?

Yes.

What happens?

The cells start changing. They get filled with more energy, which is normally not available.