Alaska.com: Alaska's Travel Website

The Inside Passage is Alaska's biggest cruise destination, but popular cruises also visit Prince William Sound, the Gulf of Alaska and the Bering Sea.

The Inside Passage is also known as the Panhandle and as "Southeast." The main ports of call are Ketchikan, Sitka, Juneau and Skagway, along with Glacier Bay National Park and Hubbard Glacier in Wrangell-St. Elias National Park.

Prince William Sound, tucked into the underbelly of Alaska, holds abundant wildlife and glaciers, including Columbia Glacier.

Cruises in the Gulf of Alaska visit Seward and Kodiak.

Bering Sea cruises call at Unalaska/Dutch Harbor, Nome and the Pribilof Islands.

In addition to these weeklong cruises, there are local day cruises, especially in Juneau, Whittier and Seward. These visit glaciers and search for whales and other wildlife such as eagles, bears, sea lions and sea otters.