Very Important Information.
Mexico Entry Requirement - travelling with children.
It's been brought to our attention that the Mexican Migration Act stipulates that to enter and exit the country children under 18 years of age must be accompanied by either of the parents or those with parental responsibility/guardianship over them.
There's no requirement for authorisation from the absent parent, for example in the case of single parents or those divorced/separated unless you appear not to be the child's parent - e.g. if you have a different surname to your child.
You'll be asked to provide notarized written authorisation signed by the parent who is not travelling with the child or by both parents where neither is travelling with the child.
If you're not able to provide this you'll need to be able to show evidence of your relationship to the child and/or the reason why they are travelling with you e.g. a birth or adoption certificate, divorce or marriage certificates or Parental Responsibility Order. This will minimise the risk of problems when entering or leaving Mexico.
Children under 18 years old travelling alone or accompanied by an adult who is not the parent or a legal guardian must present to the immigration officer in Mexico a valid passport and notarized written authorisation from the parent(s) granting their permission for the child to enter/exit the country. This must also be translated into Spanish.
Take a look at the site here for further information Travel Advice