I agree that the actual weekend days were on the busy side, but by Monday the crowds were fairly manageable. Saturday night was very busy and DTD a was very crowded. Sunday morning was okay, but seemed busier than an average Sunday morning. I would avoid the parking structure if at all possible (took us about 30 minutes to get in when coming from Ball Rd). The park was busy, but it wasn't unmanageable (5-15 minutes lines in the morning). The crowds grew throughout the day and were fairly heavy in the afternoon/evening. On Monday, the hours were short (Mon to Thu), but we managed to get a fair amount done during the day. I was a little worried about the marathon crowds as well, but it wasn't an issue in the end.