Howdy Juliana!
While you will not find a bath or shower, you will love the
Baby Care Centers.
There are Baby Care Centers in all 4 theme parks. The Baby Care Centers are fantastic locations to feed, change and nurse little ones.
They have private rooms where mommies can nurse their babies and changing rooms with several tables to accommodate multiple Guests at one time.
There is also a feeding area with highchairs, a television and a few toys and books for older toddlers while their younger siblings are being cared for.
In the kitchen, you will find a microwave, oven and sink.
On more than one occasion, we purchased items from the shop you will find in each Baby Care Center. Here, you can purchase items including formula, baby food, diapers, wipes, sunscreen and over-the-counter medications.
We don't use the Baby Care Centers anymore but I am so grateful to have had access to them when my kiddos were younger.
Thanks so much for your question and please let me know if you need any further information as you plan your Walt Disney World Resort vacation. Have a magical day!