I am flying into Dallas from Sydney in July 2017 and was expecting to stay for 3 days but looking at the map I have seen this Six Flags park. We have been to both Disney's in the USA and I want to convince my wife that staying another day to visit the park would be worthwhile. She thinks that it will be the school hols at that time and the park will be packed with long queues everywhere. Any suggestions on if it is worth it and is it school hols in Texas?