Specialist holiday companies usually know all of the relevant procedures in the popular destinations. However, a sensible safeguard may be to check that the type of wedding proposed complies with local formalities.
In any event, it is essential to know whether a particular statutory matrimonial property regime will be imposed as a result of marrying in your chosen destination which may be very different from that which you have in mind. Always make sure that you obtain at least one certified copy of the marriage certificate which may be required in the future for any number of purposes. Duplicates may be difficult to obtain after the event.