Choose 3 days if you are new to yoga, or 5 days if you already have a regular practice. The days have a rhythm and not much else: a morning practice while the valley is still cold, a long breakfast, time to do nothing in particular, another session when the light turns soft.
The 3-day beginners retreat starts from zero: breathing, simple poses, how to rest. You do not need to be flexible. You need to be willing to be bad at it next to strangers, and that wears off by the second day. The 5-day advanced retreat assumes you know your way around a mat, with longer holds, flowing sequences, inversions and breath work.
Evenings are the part people don't expect: a fire, good music, a hang that goes late without anyone checking a phone. For anyone who wants more, there are day trips into the valley. Skip them if you would rather lie in a hammock. Nobody keeps score.
What you take home is a quieter head and a routine that survives your living room. Most people also sleep better within the first few nights. We would like to take credit, but the altitude and the walking are probably helping.
The valley, the food, the place
Between sessions, the valley does a lot of the work. Paths run through fields and along the river, and a slow walk after practice is the easiest way to let your body settle. Food is fresh, varied and always on the table, so nobody is hungry or waiting around. The place is clean, calm and unfussy, and the people who come tend to be easy company. Now and then something nice turns up that wasn't on the schedule. The food is excellent, and vegetarian options are always available.