Which South American industrial harbour would be best suited? It should be big and busy. I suck at geography.
Also, I am assuming that a circus that features attractions like elephants and tigers has a supply of tranquilizers to drug the animals should they escape or go nuts in the arena. Does anybody know what kind of drugs are used? Do they get administered by dart gun?
I googled the term 'circus' and got a little overwhelmed. If anyone knows a good site that informs about circuses and how they are run (as opposed to sites that advertise a particular circus), I'd be very grateful.