Yay oh yay oh yay!
And the funny thing for all of you sleuths, is that I had looked at all of the clues without trying hard, but as soon as I saw the hippo on the circus train and thought of
CHOMP I thought "Hungry Hungry Hippos!" Gut instinct reigns supreme!
But then I spent some time to make sure the clues fit. But my rational was slightly different on a few.
Week 1 - My translation said "Water of course charger" so I went with the charger as another word for horse and the "of course" was "a horse is a horse of course, of course..."

(I'm definitely dating myself with that phrase!) So I had "Water Horse, of course" = a Hippo!
Week 2 - Homer! I just pictured him saying "hungry...." and there was an episode titled "Hungry, Hungry Homer!"
Week 3 - the hippocampus was easy after that!
Week 4 - the eye - could be any eye! But a hippo's eye is a protruding eye! and they have weird tears! Ah, the stuff you will learn because of CD!
Week 5 - And the coordinates - yep, the San Diego Zoo! And thanks to Google Earth, I could get close enough to see the Hippo Enclosure which looks exactly the same if you go to the Zoo's web site and call up the map of the zoo!
Great Game Team 1529!