It's me(15), my little sister(11), big brother(21) and parents(in their 40's) and we're going on the 2nd week of august. We're staying on disney property so we'll take advantage of the magical hours.We're also doing fastpass but not park hopper. We'll be leaving the night before and arrive there in the morning but they said our room won't be ready until 3pm, so I guess we can relax for a bit then go to one of the parks for a few hours that day. Is one park a day enough time or are we rushing it? And of course we'll be taking breaks, going back to the hotel and finding places to eat and cool off, so some advice could help and I have the "Complete Idiots Guide to Disney World" book, so i'm looking for some help there too.If you click on my name you can see my other question about disney world with all the places me and my family wants to visit and see.(Don't mind the 6 day stay because my mom changed her schedule again).
Even with a longer stay, it would be hard to do everything that Disney has to offer, that is one of the reasons so many people go back year after year. That said, you should be able to do each of the major parks and hit the best of the attractions within your stay. You are going during the busier and hotter months, so you may want to hire an itinerary and touring plans service. We have used Custom Mouse Plans and they are great! They planned our trip so that we were in the least crowded park each day. Then they did touring plans for each of our park days that kept us out of the long lines and made sure we hit all the big rides. We never waited more than 10 minutes for any ride, even on New Year's Day! The plans were so great that I have hired them for 3 trips and I will keep on hiring them for all my trips!