I've searched the Ports of Call: Alaska board for threads for Wrangell and for Metlakatla. There is almost nothing.
Do you think that Windstar will have activities planned for the ports? It isn't clear which points in the itinerary they will have the zodiac and kayaks out. Presumably not in the bigger ports (Sitka, Juneau, Ketchican and Haines). Perhaps during some of the scenic cruising days or at these smaller ports. I'll be on the first Alaska sailing and the itinerary doesn't say.