There are military discounts and half prices weekends once every 3 months. They also have a list of zoos and etc that that have a reciprocal agreement with for 50% off. See the New Mexico BioPark Society website.
They have a once a month NM residents day where tickets are half off, no free days to my knowledge. If you are a NM residents, your tickets are automatically cheaper than out of state visitors, and if you are a veteran, student, or disables there are discounts there too. I recommend getting a year long membership, good for both parks, discounts on train tickets for the connecting biopark train, discounts on concert and event tickets, and some free entrance to some things as a member. Check out the webpage for the biopark on the City of Albuquerque website to get all and more information.
Do you when? And are they discount days? Or free day's?
That not sure. It wasn't when we were there
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