I like CPRich's ideas, but I disagree to take the glacier cruise from Whittier only if it is a rare sunny day. In fact, if it is cloudy, the glacier ice looks bluer than when it is sunny. Last summer I took two PWS glacier cruises within 10 days of each other. One day was very cool, windy and rainy. It still didn't detract from the great trip. The rain doesn't affect the glaciers or the wildlife you see!