We go to the zoo a lot. And by a lot I mean that we probably average three times per month. I guess maybe it doesn't seem like that much when I put it that way, but when we decide on a whim that it's zoo day it sure seems like a lot of work to keep the children amused while I pack lunches, clothe the children, remind them for the one-millionth time that the toys need to be cleaned up before we leave, pack the diaper bag, strap them in car seats, load the stroller and ensure we haven't left anything (or one) behind. But when we get there and they're giddy with excitement about seeing the bird show or touching the sting rays or watching the Komodo dragon, I'm reminded that it's worth all the effort.
Our own version of "monkeys" watching the Snow Monkeys - one of their most favorite places to stop.