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.
Trips to Guam are usually trouble free but travellers should take precautions to protect themselves against petty theft and pickpocketing. 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 flash wealth.
The urban population of Guam is diverse and generally accepting, but modest clothing is always good etiquette. The native Chamorro people are predominantly Catholic, and respect for the elderly and authority figures is crucial.