We did not have enough time to see all of the art in Amsterdam. I will go back one day. Arrive early. We stood in line for 30 minutes for the Van Gough museum. We did not find the collection to be as much as we had expected.
We did not get off of the ship in Rotterdam. This is a commercial seaport and am not sure it is of interest for tourists. We cruised the harbor, but cannot say much of interest about it.