B.H.
A good baby sit would be helpful. I took my kids a few years ago I believe they were 3 and 1 year old at the time. My husband and I wanted to do things but could not because the lines were so long and the kids were crying and just was not interested. We were staying at a timeshare that had many activities going on including a lazy river and activities for kids. When looking back we would have been better off if we had not paid that huge price to get into the parks and just stayed on the property of the timeshare. Yes I would take the medium size stroller. Have Fun!!