The 100 Wonders Project

The essential experience.

A detail that changes the visit

Military and protected areas have specific access restrictions; seek local cultural interpretation.

Buildings and water-supply structures at Guam’s Tumon-Maui WellPhoto: David Franzen · Public domain

For the curious reader

History, landscape and context.

Guam is an organised, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, and the most populous village is Dededo. It is the westernmost point and territory of the United States, reckoned from the geographic centre of the U.S. Indigenous Guamanians are the Chamorro, who are related to the Austronesian peoples of the Malay Archipelago, the Philippines, Taiwan, and Polynesia. But unlike most of its neighbours, the Chamorro language is not classified as a Micronesian or Polynesian language. Rather, like Palauan, it possibly constitutes an independent branch of the Malayo-Polynesian language family.

Abridged background from Guam, by Wikipedia contributors, under CC BY-SA 4.0. Paragraphs have been selected and shortened; this adapted background remains under the same licence. Retrieved 23 September 2026. Source revision.

A geological survey map of part of Guam — Section map of Guam, USA, by the United States Geological Survey (USGS). 1 : 24,000 scale; dated 2000Photo: United States Geological Survey (USGS) · Public domain

The concrete supports and water pipe at Guam’s Tumon-Maui WellPhoto: David Franzen · Public domain

From inspiration to a practical plan

Plan your visit.

Physical demands: Coastal sightseeing can be gentle; reef activities and jungle trails have different swimming and walking demands.
The consequential detail: Military and protected areas have specific access restrictions; seek local cultural interpretation.

Add to my travel workbench Research access requirements

Through the seasons

A place in the world.

Guam.

A place in the world

Select the pin to open a detailed map. Use Closer look to see the surrounding region. Drag to move a zoomed map.

Map: Natural Earth

Explore the interactive atlas

In pictures.

Guam’s coastal landscape connects CHamoru heritage with successive colonial and wartime histories.

The coast at Tumon on GuamPhoto: yuki5287 from Fukuoka city, Japan, CC BY 2.0

The illuminated coast and buildings of TumonPhoto: Zykasaa, CC BY-SA 4.0

Nature in Tumon Bay, Guam, USAPhoto: Daderot, CC0

Tumon Bay on GuamPhoto: Luke Ma from Taipei, Taiwan ROC, CC BY 2.0

A commemoration honouring an Iwo Jima veteran at Tumon on GuamPhoto: Chairman of the Joint Chiefs of Staff, CC BY 2.0

Open the complete gallery Discover the world in photographs

Keep exploring.

Explore more places in the same country.

Useful links and further reading.

Choose a source for the job: official visitor information for access, the UNESCO record for the named property’s designation, and background or library resources for deeper reading.

Visit · guam.gov

Guam Visitors Bureau · official visitor information

The official website associated with this place. Look for visitor information, contact details and local announcements; availability varies by provider.