The last sailing day on ms Statendam, the captain announced us that we might be able to see Orcas around 20:30 that evening. Many passengers took their dinner earlier than usual and came out on the deck.
Watching with a hundred's of eyes we couldn't find Orcas. There was no sign of them.
It was getting dark and people left the deck one after another.
But you need to be a little more patient...
to see wildlife.
An hour later than the expected time, when the sun had completely set, after everybody gone back to their cabins, they appeared. They were swimming far away, but I recognized that they were Orcas because of their straight dorsal fins.