Hi Gabriela! Thanks for visiting planDisney.
Unfortunately, the stroller you describe doesn't meet the park rules for
stroller size. Strollers larger than 31" x 52" are not permitted. You'd be stopped at security, which would be an unmagical start to your visit, so it's best to leave the 6-seater stroller at home. Wagon strollers are also not permitted. I'm sorry if that's not the news you were hoping for today!
Without knowing the age of all your little ones, I can suggest a couple of solutions. First, wear the youngest ones if this is at all feasible. If you have more than one adult, you can carry two this way. I visited the parks without my husband when my little ones were three and not yet one. I wore the youngest while pushing my older son in a stroller. This worked better for me than handling a larger-sized stroller alone. With each adult pushing a double stroller that meets park guidelines and baby-wearing, you could manage. That would be my approach!
If you don't own double strollers it is possible to
rent at the entrance to the parks or with the featured provider, Scooterbug. While daily rental at the parks is very convenient, if your little ones are very tiny, Scooterbug might have better options for your family's needs.
You're going to make lots of memories! I hope you have a magical time.
Elizabeth