As in the thread linked above, we were changed from Puerto Plata to Amber Cove and they talked about it like it was a completely different location, but it is just the Carnival port a few miles outside of Puerto Plata. Any tour company you book with privately would probably just pick you up at the other location, but you might want to confirm when you do book that they can do that. Our booked excursion with NCL did not change.