Hola, Do you offer day horse riding trips for clients other than guests this weekend?
You have several answers that should help you. Sorry I couldn't help you with this question. We just had lunch there on a tour.
La Cienega has some beautiful horses on the property, but if they don't offer horse treks to non-guests, try Hacienda Hato Verde (about 10 minutes up the road). They do, and the trek was great.
(I stayed at La Cienega and horse-trekked with Hato Verde – both of which I HIGHLY recommend)
Get an answer from Hacienda La Cienega staff and past guests.