Our third stop on the cruise was a visit to the city of Ketchikan located on Revillagigedo Island along the Alexander Archipelago. Ketchikan is Alaska's southeasternmost major settlement. The population of Ketchikan is just over 8,100 and, believe it or not, that makes it the sixth most populous city in the state. Which really shouldn't surprise anyone, since there are more caribou in Alaska than people. Historically, Ketchikan was incorporated in 1900 and is considered the earliest extant incorporated city in the state. The city serves as a major and first port of entry into Alaska. Its economy is based on fishing industries, canning in particular, tourism, forestry and the government (a large employer in the area). I booked us on a 90-minute Duck Tour, a city and harbor tour aboard an amphibious bus/boat vessel that takes you around the city and then plunges into the harbor for a little cruise along the docks and fishing boats. I did not enjoy the Duck Tour and wouldn't recommend it. First, it is difficult to get on and off the vessel, and because it is basically a boat with wheels, the seats are too narrow and not very comfortable (especially if you're six feet or taller). The Duck boat moves nonstop throughout the city streets so the young guide was continuously yammering away on the mic with one piece of information constantly following another. We didn't have time to absorb anything she was saying because of the pace of the tour. The Duck boat had plastic shields in place to protect us from the rain, but that only obstructed our view and made picture taking an issue. As for the harbor portion of the tour, I think we had better views from our cruise ship. My advice, skip the Duck Tour and walk the city or try some other kind of excursion. Joe and I spent some time sightseeing and shopping near the pier area, which is basically one large retail center.