Warning flags on beaches should be taken seriously. If black or red flags are up, do not enter the water. Strong undertow and rough surf are common along beaches throughout Mexico, especially on the Pacific coast, and drownings have occurred when swimmers have been overwhelmed by conditions. Swimming pool drain systems may not comply with U.S. safety standards and swimmers should exercise caution. Do not swim in pools or at beaches without lifeguards. Do not dive into unknown bodies of water, because hidden rocks or shallow depths can cause serious injury or death. If you choose to swim, always exercise extreme caution.

Use only the licensed and regulated "sitio" taxis. Some illegitimate taxi drivers are, in fact, criminals in search of victims; users of these taxis have been robbed, kidnapped, and/or raped. Hotels, clubs and restaurants will summon a sitio taxi upon request.

Firearms and Knives - It is best not to carry even a pocketknife into Mexico as this can result in a weapons charge if a knife is found on a traveler who is arrested for a separate offense. Visitors driving across the border should ensure that their vehicles contain no firearms or ammunition. Mexico imposes harsh penalties for bringing as little as one bullet across its borders.