We are taking a Disney Cruise next May. Our twin daughters will be 4 (turning 5 on the boat) and one of them has special needs. She's mildly affected with Cornelia de Lange syndrome, which is marked by developmental delays. She has no dietary restrictions or major physical constraints, but she is speech delayed and small for her age. My main concern is have additional supervision for her by a DCL staff member when she's in the play areas, and possibly someone who knows basic sign language. Please comment if you have experience with this. Thank you!