Things to consider.
Be flexible and plan ahead
Have several options for the date and time of your wedding. This way, you’ll be much more likely to be able to have your wedding at the resort of your choosing. And make sure the date is at least six months away.
Make the details clear. It is customary that the bride and groom pay for the accommodations for their attendants, and some wedding couples may pay for travel costs, as well. Decide what you are able to do and make these details clear to your attendants when you ask them to be part of your wedding.
Send out "save the date" cards
With traditional weddings, invites are usually sent out 4-6 weeks in advance, but for a destination wedding, that isn’t enough time for people to make their travel arrangements, ask for time off from work, etc. It is recommended to send out the save-the-date cards several months in advance.
Carry on your dress
Many brides take their wedding dress on the plane as carry-on luggage, but BE SURE it is an approved size, as some airplanes do not have extra room for oversized carry-on pieces. It is advised to make arrangements with the airline in advance. Some airlines allow the large "coat closets" in the first-class cabin area to be used for bridal gown storage.
Rent the tux there
Tuxedos can be brought along, but are usually rented at the wedding location (check with your resort). If you are bringing a rented tuxedo, have one of your guests bring it back and return it for you.
Send the rest
Packing for a wedding AND a honeymoon can add up to a lot of luggage. A good suggestion is to have some of your guests bring some items with them or ship items to the resort (if allowed). If you are shipping anything, make sure you leave extra time and use an overnight service, such as FedEx, not regular mail.
Bring copies of everything
Typically, most countries require that documents be sent and paperwork be completed before your arrival. If this is the case, do NOT send documents by regular mail. Mail service throughout much of Mexico and the Caribbean can be extremely slow. Rely on fax transmissions and overnight services such as FedEx for delivery of papers. Also, bring extra copies of all paperwork to your destination, just in case.