keilen, what tour are talking about. There are 1/2 tours that take passengers to see the whales in Samana Bay. I understand there are also some special groups that go out to Silver Bank, but those are multi-day tours and very expensive.
Late February is a very good time to see the whales in Samana Bay. The excursion is worthwhile, but it is a long trip from Punta Cana, unless you book one of the tours that makes provision to get you there and back the same day.