Just an idea that was passed on to me about children and destination weddings. If you don't have many children attending then this probably won't be useful, but... depending on travel arrangements you are making I know some vacation carriers give deals for wedding and group booking like for every 10th or 15th person booked you get a free one. What was suggested to me was to use that free one on a younger family friend or babysitter to watch the children during the wedding and also during excursions or other activities. Just a thought that was passed on to me and felt it may be useful for you also.