We will be taking a cruise from Vancouver to Whittier and then will be 2 nights in Seward. While on the cruise we are going whale watching with Harv and Marv in Juneau. I know that there are several tours out of Seward. I don't want to repeat what we probably have already seen during the cruise. Would you recommend a half day Resurrection Bay Cruise or a longer Kenai Fjord tour?