[adpiucf]

If you are doing it at the house, call it a "Sisterhood Lockdown" and make cute t-shirts.

Is the purpose a beginning of the year retreat? How many hours are members going to be there?

Set up a schedule from roll call at check in to dismissal the following day. Have some wiggle room in the schedule, but list out what you need to accomplish during the retreat and allot the appropriate amount of time.

Make sure the members have a copy of the agenda.

I think that with a large group, time is more effectively used when you break into smaller teams that rotate throughout "stations" for the retreat (IE: reviewing standards code, reviewing academic program, craft stations, etc.) and then coming back together for games or singing songs.

The best retreats are ones where the leaders talk less and the members interact more. If you're reviewing the standards code, why not break the chapter into small groups to "act" out an inappropriate behavior, and have the chapter talk about what they did and what is correct. The standards chair moderates the skits and the discussion. Everyone is involved, and it is presented in a positive way, so people feel less like they are being preached at and more involved in the process.

Ice-breakers are a great way to get started. Also, a take-home craft is a good memento of the retreat.