How many days needed to see Magic Kingdom

[03grands]

Hello, we will be visiting Disney for 4 days beginning 12/10-12/14. I have 4 grandchildren, 2 age 5 and 2 age 4. We have 1 day planned at Magic Kindgom, 1 day at MGM, 1 day at Animal Kingdom, and then the other day at Seaworld. I need your input on how many days to we need in Magic Kindgom. Will 1 day be enough to see it all? Thanks for your input!!!

 

[MickeyMomTo2]

With kids the ages of yours, I would try to fit in more than one day. It will be the park with the most attractions for their age group.