We were there in June 05 (from June 24th to July 6th) and the parks were crowded often but we had great fun!! Also, the parks are open much later than in winter time so that's a plus. Now, if you're careful about which parks you go to on which days, you can avoid long lines and, I think, this is especially important in June/July. I would definitely avoid EMH (extra magic hours) mornings, even though you're staying onsite so try to go to parks which had EMH the previous day! Also the biggest and best strategy is to get to the parks early. We didn't always achieve that but when we did, we noticed a
huge difference! For example, our first MK day, we got there at 10.45ish and we were overwhelmed by the crowds. Castle? What castle? All I could see was a sea of people in Main Street. lol!!! I found it stressful! Our 2nd MK day, we got there for 9am (not at EMH Day) and right up to 11am was fabulous - very low crowds, milder weather etc. Then around 11 the crowds
poured in and made for a very different atmosphere but we didn't care as we had the headliners done and were taking our time by then.
The heat is an issue but it was quite manageable.
We noticde a big change too between the last week in June and the first week in July with crowds increasing on our 2nd week and heat levels rising!
You'll have a wonderful time but do get to the parks early. Good luck!
