Hi, Lisa!
Because you believe in fairies, you'll be able to find Tinker Bell in the Magic Kingdom at the Walt Disney World Resort.
Tinker Bell's Magical Nook is located just off Alpha Isle, near the Swiss Family Robinson Treehouse in Adventureland. Here, you'll be able to meet Tink and maybe even one of her fairy friends from Pixie Hollow, including Vidia, Rosetta, Silvermist, Fawn, Iridessa, and Terrence (additional appearances are subject to change).
The Disney Parks Blog did a great piece on the fun new area;
check it out here. The Nooks is slated to be open from 9:00 AM until one hour prior to Park closure. Make sure to grab a Times Guide on your Magic Kingdom day for exact times.
Tiana meets and greets her loyal subjects in Liberty Square in the Magic Kingdom, as well. You'll find her with handsome Prince Naveen just off the path from the Liberty Bell, in the gazebo just across from the Christmas shop.
Have a wonderful time!
See you later, celebrator,
-Deborah B.