As far as difficulty, the Ancascocha and Salkantay treks are equivalent. In their 5 day versions, the treks are challenging but not overwhelming. They are well paced.
Both have mountains and glaciers. Both have lakes and stretches of green vegetation.
The Ancascocha Trek is extremely remote. You will rarely see any other trekkers. There are four Inca Ruins that you will visit and tour. There are red mountains and stretches of original Inca trails.
We are partial to the Ancascocha Trek since we designed it and are one of the only companies that offer it. However, the Salkantay Trek is also a phenomenal experience. No matter which trek you choose, it will be an experience like you can´t even imagine.