I don't think anyone realizes just how big Disneyworld is until you are actually there. Plus International Dr. runs parallel to the freeway, so staying on International Dr. doesn't neccesarily mean you are close to Disney. In my opinion, trying to go back to the hotel mid-afternoon would be very time consuming considering how long it would take you to get to your car, leave Disney, get on the freeway, to your hotel, etc. We have had much more luck with our little kids by going to the park one day and then skipping a day, and staying at the hotel to play at the pools, catch up on sleep and get an early nights rest. I do however, have to admit I have never been to Disney in the crazy summer months. If the heat is just too intense, maybe it would be worth it, but just now that this will be a long process! You could always book a nice meal mid afternoon and take your break for the day while eating in air conditioning. That might work! Good Luck!