Hello, Jodi!
You're going to really love your vacation at Disney's Hilton Head Island Resort; we certainly did!
Disney Vacation Club Members receive many discounts both at the resort as well as at participating nearby restaurants and tours. According to the Member website at this time, there are four such perks offered to Members on Wednesdays: "Behind the Ears" Tour of Disney's Hilton Head Island Resort (complimentary); Dolphin Excursion Tour (-10%); Nature Kayaking Trip (-$5); Tide Me Over and Signals (-10% purchase, not including refillable mugs). In addition, Members receive 10% off dining at ten nearby dining locations!
The Grocery Order Form, too, is especially convenient. The $10 service charge is applied to the order, regardless of size, so your family can keep snacks in the room, or even prepare meals in your villa if you have a one, two or three bedroom villa.
Bring your Disney Vacation Club Member ID with you in order to ensure access to the perks, which includes free DVD rentals...a great perk for while everyone is showering and getting ready for dinner!
In case you missed my suggestions for another Guest, here's a link in which I describe some of my family's favorite activities at Disney's Hilton Head Resort. I'm sure that your kids will love the dolphin excursion, as there's nothing quite like experiencing these beautiful creatures in their natural habitat. We also really enjoyed utilizing Disney's Beach House, as well as activities in Community Hall.
My mom is one of eight kids, and my dad is one of thirteen (!) so I have an idea of the chaotic fun that awaits your family at HHI! Enjoy every minute of it; you're creating memories that they'll all talk about for generations to come!