The port of Dutch Harbor is a part of Unalaska city. Dutch Harbor and Unalaska are two islands connected by a bridge.
Dutch harbor is one of the United States' most productive commercial fishing ports throughout the world.

If you like to learn and see about wildlife, go on the marine tours in Dutch Harbor. There you can see Steller sea lions. Even though their population has decreased and they're on the endangered species list, you can still have many opportunies to see them. On the daily cruises out of Unalaska, you can see killer whales, gray whales, seals, sea otters and porpoises. The most thrilling thing to see is the heavily populated eagle habitats in the world with literally hundreds of eagles. Golden and Bald eagles live on the island and peregrine falcon, raven, rosy finch, and common puffin.

The most distinctive volcano throughout the Aleutian Chain, is found in Unalaska. The volcano is called Makushin Volcano. The last eruption it had was in 1980, but hot springs indicate that the volcano is still active.

The oldest Russian Orthodox church in North America can also be found in Unalaska. The Orthodox church was constructed in 1825, but they also enlarged it in 1896. The Russian Orthodox Church of the Holy Ascension of Christ still stands today, even through the Japanese attack of this island.

Dutch Harbor/Unalaska economic base is the commercial fishing industry. Dutch Harbor processes millions of pounds of fish and sea food. Like ninety percent of jobs, all depend on commercial fishing in some way. Dutch Harbor is known for being the biggest commercial fishing port in the United States. It services over 600 vessels.