Hi Barbara! Welcome to the Disney Parks Moms Panel!
I love your question, Barbara, and I also love that it looks like you'll be visiting soon! I had to do some sleuthing because we have a few pictures on our site that have pools with slides, but hopefully I can suggest the pool you are looking for!
If I had only one guess for the picture you saw based on the description of "beautiful," it would be the picture above that is from
Disney's Wilderness Lodge. This picture is absolutely gorgeous, because it is a truly breathtaking Disney Resort hotel, and the Copper Creek Springs Pool is no exception! With a 67-foot long waterslide, it's fun for the whole family.
If this isn't the pool and slide that you had in mind, I have a few other possibilities. I'll link each location here, so you can browse the pictures and see if one hits the bullseye!
Disney's Beach Club Resort has what is commonly known as one of the best pools at the Walt Disney World Resort with 3-acres to enjoy at Stormalong Bay!
Disney's BoardWalk Inn is home to the Luna Park Pool and is decked out in a carnival theme. And
Disney's Polynesian Village Resort has one of my family's favorite pools in the Lava Pool with a 142-foot long waterslide!
I hope this has helped you figure out what Disney Resort hotel was in the picture that you saw! If not, please visit us again!
Tabitha