Try Galloping Grace Youth Ranch. I don't know if it is an all day affair for volunteers or not, but it is pretty neat. They are in RR. Natural History Museum takes teen volunteers as well. Not sure of timing.
Kim
Kim Wagner Troublemaker "Nothing you do for children is ever wasted" Garrison Keillor
I would check with The Education Resource Center (ERC). Grace Baptist Chapel, 12201 Comanche NE, Albuquerque, NM 87111 Phone: 505-292-3156 Email: ERC.GBC@gmail.com Hours: Fridays 10am-4pm *Currently closed for summer (but I have still been receiving e-mail from them.)
Have you looked into the Education department at the Botanical gardens? They always have young docents stationed throughout that amazing place! Good luck! Barb