Very good. Although it's a hot time, people don't have as much as they think. On the top of Osaka, you can see the whole Osaka. Every floor down has its own characteristics. It is very interesting to have small 3D images, warrior knife exhibition, Hideki Toyoshi's family tree emblem and so on. It is recommended that small boys (girls who like cooler ones can also do it). The park is very big, full of cicada sounds, trees have not been built, very natural. PS: It's very close to Osaka City Station. It's at the gate of Osaka City Park. It's recommended that first time visitors take a circle of water bus (55 minutes) before going to Osaka City Park.