Hi Deborah,
Thank you so much for visiting the Disney Parks Moms Panel with your question. You are staying at one of my favorite resorts at Walt Disney World.
Disney's BoardWalk Villas is my home resort with Disney Vacation Club. I enjoy the jovial seaside theme, and the ability to walk or take a boat to Epcot and Disney's Hollywood Studios is fabulous! I have wonderful memories of my daughter as a toddler running down the long, carpeted hallways at Disney's BoardWalk Villas. I can still hear her laugh as she explored this magical place!
You can certainly request three high chairs for your little ones. Typically, there is one high chair in the entry closet when you arrive in a villa. Since you need multiple high chairs, I suggest that you make a request for them. While I imagine that this will be accommodated, please do note that it is a request and not a guarantee. If you are a Disney Vacation Club member, you can make this request by calling Disney Vacation Club Member Services at 1-800-800-9800. If you are not a Disney Vacation Club member and made the reservation through a travel agent, you can contact them, or simply call Disney at 407-939-5277. If you are unable to make the request ahead of your vacation, you can always use your in-villa phone to call and request the high chairs when you arrive in your villa.
I hope that these thoughts are helpful for you, Deborah. Please do let us know if you have any further questions!