Hi Cindy,
You and your group are in for a good time with delicious food at
Whispering Canyon Cafe ! The restaurant is located at
Disney's Wilderness Lodge Resort, a lovely boat ride away from the Magic Kingdom park. When you exit the Magic Kingdom, you will see the Ferryboat dock to your left and the water launch docks directly ahead and to your right. The launch to Disney's Wilderness Lodge typically departs from the dock directly in front of you as you exit the Magic Kingdom. The docks are well marked so I don't think you'll have any problem.
The timing will depend on many factors. From the time you exit the park and walk to the dock, you can expect your trip to take 30-45 minutes. If it takes less time, you can enjoy the lobby and surroundings at Wilderness Lodge. The timing will depend on how many people are in line in front of you, and whether there is a boat waiting at the dock. Sometimes you have to wait a few minutes for a boat to arrive.
Thanks for stopping by the Disney Parks Moms Panel. Please let us know if we can help you with any other questions!
Wishing you a magical vacation,
Amy H