My husband and I are celebrating 20(!) years next May with a Disney Dream Cruise. It is only a 4-day cruise -- leave port, day at Nassau, day at Castaway Cay, day at sea, and back. We had originally decided on a vow renewal on board during the day at sea, so we don't miss any beach time. The note from Disney Weddings, however, said the on-board ceremony would need to be on Nassau day while in port. If I have to miss beach time anyway, is a beach ceremony on Castaway Cay a better choice than on board? Is either Nassau or Castaway Cay more important not to miss time? No one in my family has had a Disney cruise before. We have four kids along (plus a baby) between our family and my brother's, and I'm sure they'd rather be at the beach than a ceremony...