May 1-10, 2 adults, 1 child, 1 infant
9 nights at Fort Wilderness Cabins with Spring discount: $2777
8 days of Water Park Fun & More tickets: $1100
Gas for driving to and from the park and within the park: $125
Food and souvenirs: $1250 (this category is by far the hardest to estimate but we're not big souvenir buyers and we eat relatively cheaply; estimating $125 per day roughly including travel days)
Total expenses: $5250
Subtract $200 for a disney gift card we got for opening a disney visa; subtract another $50 for a disney visa rewards card)
Total: $5000
or roughly $500 a day.
Not bad for a family of four for total entertainment, food, transportation, and nice lodgings.