Cesar, I assume a Viator employee called and told us about the long waiting line at Battery Park. He met us at 11:30am and let us joined a group that was already ahead in the line, and we do not need to go way behind the line even though our schedule is still at 1:45pm. He checked on us until we reach the security check… thank you Cesar! It was a good thing I got tickets in advance with Viator!