Safety

It is important to be aware of your surroundings when exploring War in the Pacific National Historical Park to ensure both your safety and the safety of the historical structures we are charged with protecting.

Unexploded Ordnance (UXO)

War in the Pacific National Historical Park preserves several World War II battlefields. There is always the possibility of finding unexploded ordnances both on and offshore.

Do not disturb any ammunition that you find. It is extremely dangerous and could detonate at any time. Report its location to a ranger immediately, and we will have it removed by qualified personnel. If there is not a ranger present, please call 911 to report an unexploded ordnance.

Provide the following information to the responding agency, as soon as possible and as best you can without approaching the suspected military munition:

• Individual making report and others present (names, organizations)
• Location (address and coordinates, if available)
• Munition condition (buried, partially buried, exposed)
• Estimated size of munition (length, width, height)
• Suspected type of munition (projectile, mortar, rocket, grenade, or bomb)
• Any markings and color coding on the munitions (use binoculars, do not approach munition)
• Nearby structures (landmarks, names, types, distance from munition)
• Record munition (send photo to responder, if possible)
• Isolation (inform responding agency that the area has been isolated)

Caves and Tunnels

Do not enter any caves or tunnels. Some may contain hidden explosives. Do not open any sealed caves. It is both illegal and dangerous.

Historic Structures

The historic structures and military equipment at War in the Pacific National Historical Park are more than 80 years old and are very fragile. Do not disturb any of the historic ground features such as foxholes, trenches, and bomb craters.

Please do not remove or disturb the historic and natural objects beneath the water's surface. They are also protected by law.

Weather

Guam's warm climate, sandy beaches, and turquoise waters beckon visitors to discover the island's rich heritage. However, the tropical climate brings with it heat, humidity, and the potential for strong storms. The year-round temperature averages 27°C (80°F) and the ocean temperature a pleasant 27.2°C (81°F). May to November is the rainy season, and you can expect wet, hot, and humid days. Temperatures cool down from November through April, the dry season, and tropical trade winds are common.

Typhoons can occur in any month, although they are more common during the rainy season. But don't worry: typhoons give ample warning of their coming and there is plenty of time to take shelter.

Check current conditions to stay up-to-date on the weather in Guam.