Guam Island USA (Apra Harbor, Marianas)

Guam Island is a USA unincorporated territory in the Western Pacific Ocean. Guam's citizens are US citizens by birth. The list of all 4 unincorporated US territories also includes the Northern Mariana Islands (American Marianas), Puerto Rico, and the USVI/Virgin Islands.

Northern Marianas' other cruise destinations are Saipan Island and Tinian Island.

Most cruise ships to Guam Island dock (anchor) at Apra Harbor - a deepwater port (locode GUAPR)  on the western coast.

The harbour is natural, formed by Orote Peninsula (south) and Cabras Island (north), and is considered one of the Pacific Ocean's best natural ports.

To the south, Apra Harbor first narrows, then widens to form the port's inner harbour. Its southern end is where the USA's Guam Naval Base is located. Its northern end is where the commercial (cargo and passenger/cruise) port is located.

Guam's capital is Hagatna (formerly Agana), while the country's most populous city is Dededo (population over 160,000). Guam is Mariana Islands' southernmost island. It has total area 582 km2 (225 mi2), ranking it Micronesia's largest. Micronesia is a western Pacific Ocean region (located to the north of PNG-Papua New Guinea and Australia) that includes around 2100 islands and has total land area approx 2700 km2 (1000 mi2).

Guam's highest elevation point (Mt Lamlam) is 406 m (1332 ft) above sea level.

In 2019, Guam USA joined SPCA (South Pacific Cruise Alliance) as its 9th member - together with American Samoa USA, Cook Islands, French Polynesia, Fiji, Pitcairn UK, Tonga, Samoa, Wallis and Futuna. Guam's location (proximity to Asia) make it an ideal cruise travel destination from Asian homeports. Guam also has plans to develop homeporting operations with roundtrips around Micronesia. For season 2020 were scheduled a total of 723 cruise ship calls to SPCA-member ports and destinations.