We enjoyed our zoo membership in 2011. We went many times, and got to enjoy each section of the zoo in a thorough manner. We even went a couple times in the snowy season when the animals were inside. We were able to see them super close!
The otters were very energetic!
They had a fall maze of straw for the kids to explore.
My parents had given us a gift of a zoo membership for Christmas, so we can go as many times as we like. We've even gone in February and only shared the zoo with a couple other people!