Hi, when l was there the giraffes and zebras were roaming about in the fields, l did not see anyone trying to feed them, l guess that this is left to the keepers to take care of them, but you can always ask when you arrive We did not book ahead for lunch, there were plenty of places available, also this is now the low season so you will not see too many tourists, enjoy your stay and have a lovely day, do try the home grown blueberries they were delicious