Everyone is very different in how they metabolize. Two people at Disney, eating the same foods have the potential to lose or gain weight, and that can be greatly affected by their lifestyles at home.
Person A
At Home:
On average consumes 2000 calories a day and faithfully walks the dog at a moderate pace for 60 minutes a day (3mph) which burns 261 calories. They net 1739 calories a day
At Disney:
Breakfast - Fruit with 1 container Skim Milk (Apple and a banana) 390 Calories
Lunch - Chicken and Rib Combo with chocolate cake for dessert 1892 calories (Figuring Cake is 2oz)
Snack - Sm Popcorn 550 calories
Supper - 8oz Steak, potatoes, turtle cheesecake 1340 calories
Walk 5 hours a day (non-stop) at a moderate 2.5mph pace (Sometimes you may go faster at Disney, but you'll also go slower when you're doing the Disney shuffle) 1185 Calories
Daily Net Calorie Count 2437
Person A would gain about 1lb every three days.
Person B:
At Home:
Breakfast - Sausage Egg and Cheese McMuffin with Hashbrowns and coffee 436 calories
Snack - Candy Bar Reese's PB Cup 210 calories
Lunch - Left over Hamburger Helper, 1 can coke & light Yogurt 880 calories
Snack - M&M's (40 pieces) 240 calories
Supper - on the run so a Big Mac, Medium Fry, Medium Coke 1203
Snack - 3.6 oz potato chips & Can of coke 360 calories
They don't do any additional exercise or walking at home
Daily Net Calorie Count - 3329
Put person B at Disney eating the same foods as person A
At Disney:
Breakfast - Fruit with 1 container Skim Milk (Apple and a banana) 390 Calories
Lunch - Chicken and Rib Combo with chocolate cake for dessert 1892 calories (Figuring Cake is 2oz)
Snack - Sm Popcorn 550 calories
Supper - 8oz Steak, potatoes, turtle cheesecake 1340 calories
Walk 5 hours a day (non-stop) at a moderate 2.5mph pace (Sometimes you may go faster at Disney, but you'll also go slower when you're doing the Disney shuffle) 1185 Calories
Daily Net Calorie Count at Disney 2437
Person B is consuming 892 fewer calories than average and could conceivably lose a pound every 4 days.
Both people eat the same foods while they are in Disney, but their lifestyles outside of vacation mean that one person will likely gain weight and the other person may well lose weight.
Also remember that when you lose weight the first 10lbs are usually water and are the easiest to come of. When you gain weight water is the first 10 lbs on as well.
If you want to figure out what you are likely to do on vacation, you can take a look at your lifestyle at home and also what you're likely to eat at Disney. My poor examples at Disney got no snacks outside of a small popcorn and quite honestly not eating a Mickey Bar on vacation doesn't seem right! LOL
To figure out your personal losses/gains take into account:
How many calories do you normally eat per day when you are at home?
How many calories do you burn exercising on average while you are at home?
Home Calorie Count
How do you plan on eating while on vacation?
How many hours per day are you going to walk and how fast will you be walking?
Vacation Calorie Count
If your home count is higher than your vacation count - you'll lose. If your vacation count is higher, you'll have to step it up when you're on vacation.
(I got all of my calorie counts on myfitnesspal.com, which is my favorite weight loss tracking site.)