Guam Travel Information
Electricity in Guam is 110/120 volts, 60Hz. Two-prong, flat-blade plugs are standard.
English and Chamorro are the official languages of Guam.
Generally trips to Guam are trouble free but travellers should take precautions to protect themselves against petty theft and pickpocketting. Make sure you have duplicate copies of your travel documents and don't carry all your valuables in one pocket or bag. Make use of hotel safes and don't display conspicuous wealth.
Terrorism is a problem all over the world and as Guam is an unincorporated US territory the same threats apply to Guam as to the United States. However, the island has no travel alerts for terrorism and is generally considered safe.
The urban population of Guam is diverse and generally accepting; however, modest clothing is always good etiquette. The native Chamorro people are predominantly Catholic, and respect for the elderly and authority figures is crucial.