Hen Party Communication
Rather than have multiple bridesmaids spread the word about the hen party (which is typically kept a secret from the bride), it may be better to select a single person to formally communicate all of the location, budget and planning information to the guests. If too many people get involved, messages could get mixed, therefore causing confusion and tension between hen party guests and the bridesmaids.
Communication via email is probably the easiest way to get messages across to everyone. You’ll be speaking to and emailing people you don’t necessarily know, so everyone may feel most comfortable with this form of communication.