阿留申岛乌纳拉斯卡 / 荷兰港社区南临太平洋，北接白令海 ， 历史悠久 ， 在过去的 20 年间迅速发展成为全国名列前茅的商业渔业港口。
最早居住在乌纳拉斯卡的居民是乌纳干人（也称为阿留申人），他们世代居住在这些岛屿上，已有约 9,000 年的历史。
乌纳拉斯卡是于 19 世纪 20 年代早期 ， 俄美皮草公司成立的第一批总部 ， 也是利润可观的海獭皮草贸易基地。乌纳拉斯卡最著名的地标是基督圣灵升天俄国东正教大教堂，落成于 1896 年，是北美洲最古老的十字形大教堂。教堂俯瞰海湾美景，其圆拱顶是摄影者们的最爱。这里展示着逾 600 个俄国东正教图标、书籍和圣物，这里也是当地乌纳干/阿留申人社区的中心地带。
乌纳拉斯卡及其姐妹城市荷兰港港口坐落于北太平洋和白令海渔业中心腹地。这里是阿留申群岛位于的天然深水港口，因而自18 世纪起俄国皮草贸易商首次航行到这里时就发展为重要港口。在第二次世界大战后，白令海帝王蟹捕捞业开始崛起，并于 20 世纪 60 年代开办了乌纳拉斯卡第一家蟹加工厂，自此，该社区从一个仅有400 人的僻静村庄发展成为繁荣的港口城镇，居民也增加到 4,000 位。 1985 年，当时的大比目鱼 / 太平洋鳕鱼业开始在乌纳拉斯卡建设大型加工厂，如今这里发展成为全国最大、创造利润最多的渔业区。荷兰港是捕蟹船主要的交货口岸，探索频道的热门社会传真节目“海洋中的搏斗”描述的就是这里的真实场景。
二战对阿留申群岛的影响至今仍然历历在目 ， 这里现在的景象就是当年战争的最好证明。游客能看到活动棚屋、营房、混凝土贮仓和前线炮兵阵地，这是探索这部分美国历史的绝佳机会。最不明显但依然同等重要的是战争对该地区阿拉斯加土著居民的影响，这些居民在1942 年六月日本投下炸弹后从阿留申群岛迁移出来，他们重返家乡时面临的种种困难也是不可忽视的。阿留申群岛二战游客中心、乌纳拉斯卡公司办事处和阿留申群岛博物馆都会向游客讲述这段历史。游客还可参加历史遗迹导览之旅。
除历史、文化背景和秀美风景外 ， 前往乌纳拉斯卡 / 荷兰港的游客还可开展一系列户外活动。该岛可进行多种户外活动，包括登山远足、滑雪、游钓、泛舟和赏鸟/野生动物。
Aleutian World War II Visitor Center
Dedicated to the 'Forgotten War,' is the Aleutian World War II Visitor Center, housed in the original air control tower the military built in 1942. Downstairs exhibits relive the Aleutian campaign, including the bombing of Dutch Harbor by the Japanese for two days and the Battle of Attu. Upstairs is the re-created air control tower while in a theater you can watch documentaries about the war effort in Alaska.
Unalaska is a birders paradise. The many deep protected bays, inlets, straits and passes of the area are home to a variety of birds, from graceful pelagic to melodious songbirds. One of the rarest birds in the U.S. is the Whiskered Auklet, a small, grey; diving bird with long whiskers and it can be found at the eastern end of the Unalaska Island. Tufted and horned puffins are frequently seen in the waters around Unalaska as well as a number of other seabirds and waterfowl, including numerous species of gulls, murres, murrelets, loons and grebes. On land, and in all seasons, abundant populations of eagles and ravens provide endless entertainment and photo opportunities. Local tour operators offer both transportation and where-to-fiond-them knowledge for visiting birders.
Also part of the Aleutian World War II National Historic Area is Bunker Hill, a coastal battery that was fortified with 155mm guns, ammunition magazines, water tanks, 22 Quonset huts and a concrete command post at the top. You can hike to the peak of Bunker Hill along a gravel road to the view the military artifacts.
Sure you can catch salmon and Pacific cod fishing in the waters surrounding Unalaska/Dutch Harbor but anglers usually arrive here with hopes of landing a trophy halibut, trophy as in 300 pounds or bigger. Alaska's state record for a halibut, a fish that weighed 459 pounds, was hooked and landed off shore of Dutch Harbor. Charter fishing captains are on hand to help you set a new record.
The many protected harbors, bays and islands of Unalaska Island make for ideal sea-kayaking conditions. The scenery is stunning and the wildlife plentiful. It is possible to encounter Steller's sea lions, sea otters and harbor porpoises. Kayaks can be rented from outfitters in Unalaska who also offer guided outings.
The heart of the Aleutian World War II National Historic Area is Fort Schwatka on Mt Ballyhoo, the highest coastal battery ever constructed in the US. The 1634-foot mountain is behind the airport and towers nearly 1000 feet above the Bering Sea. On top the Army fort encompassed more than 100 concrete observation posts, command stations and other structures built to withstand earthquakes and 100mph winds. The gun mounts here are still among the best preserved in the country and include tunnels and bunkers that allowed gunners to cart ammunition from one side of the mountain to the other.
Mountain bikes are a great way to travel the extensive, lightly used dirt roads of Unalaska and to explore the left over artifacts from the World War II build-up. You can hire mountain bikes in town for local outfitters.
Museum of the Aleutians
The impressive Museum of the Aleutians (www.aleutians.org) is one best native cultural centers in Alaska. The museum relives the Aleutian story from prehistory and the Russian America period to WWII and the present. Many of the exhibits focus on the enduring relationship between the Aleuts and the Russian Orthodox Church but the most fascinating displays for many are the tools, boats and grass baskets that allowed these people to live in such a harsh environment.
Sitka Spruce Park
Sitka Spruce Park in Dutch Harbor is a national historical landmark where the Russians planted Sitka Spruce in 1805, the oldest recorded afforestation project in North America. Three of the gnarly spurce are said to be the originals. The park also features interpretive displays and a short trail to an edge-of-the-cliff overlook.
The Bishops House
Adjacent to the Church of the Holy Ascension is a small graveyard, where the largest grave marker belongs to Baron Nicholas Zass. Born in 1825 in Archangel, Russia, he eventually became bishop of the Aleutian Islands and all of Alaska, before his death in 1882. Next door to the graveyard is the Bishop's House.
The Church of the Holy Ascension
Unalaska is dominated by the Church of the Holy Ascension, the oldest Russian-built church still standing in Alaska. Built in 1825 and then enlarged in 1894, the church overlooks the bay from Broadway Avenue and its setting and onion domes have become a photographer's delight. The church contains almost 700 pieces of art, ranging from Russian Orthodox icons and books to the largest collection of 19th-century paintings in Alaska.
USS Northwestern Memorial
Located in a picturesque hillside graveyard in Unalaska is the USS Northwestern Memorial. Launched in 1889, the passenger and freight ship was retired in 1937, then repaired by the military in 1940 to serve as a floating bunkhouse. It was bombed during the attack on Dutch Harbor and burned for five days. The heart of the memorial is the ship's propeller that was salvaged by divers In 1992 as part of the 50th anniversary of the event.