I have been impressed by some of the excellent and enormous exhibits at this zoo (puma, condor, fox, etc.) but the toilet situation appears to be a bit dodgy. Are those old train cars or storage containers? What about senior citizens or wheelchair-bound individuals who cannot get up stairs?
I think they're old storage containers. These aren't the zoo's only facilities, and the rest seemed much more visitor friendly. I only photographed these as I found them to be very unusual.