It is in fact Whispering Canyon. The running joke in the restaurant is when someone at a table asks for ketchup, the waitperson announces to the entire restaurant that this person just asked for ketchup. Then whoever feels like playing in gets up from their table and takes the ketchup from their table over to this person. Sometimes, I've seen that person get 10 bottles of ketchup brought to their table. It's even funnier when the unknowing person is there for the first time and makes an honest request for ketchup!
They usually have horse races every hour or so when all the kids get up and ride a stick pony around the restaurant while everyone at the tables are waving their napkin over their heads. Some waiters will clomp (is that a word?) their tray table on the hardwood floor when they are bringing your food making it sound like a horse trot. Crazy stuff like that goes on while your dining. If you are OK with that sort of stuff while dining, it's a lot of fun. Some people want to be left alone, and I think the wait staff usually know when to back off if they sense that.