Hiroshima Prefecture, Shobara City, National Bihoku Hills Park
This is a complex where you can experience a variety of things, including flower fields, large playground equipment such as slides, grass sledding, bicycle rentals, and camping. There are plenty of places for children to play, but except in winter, many couples and married couples stroll around alone, as various flowers such as tulips, sunflowers, and cosmos are in full bloom. Also, since it is a national park, the admission fee is cheap. I think it's a bargain at 450 yen for adults and free for junior high school students and younger. It is so large that it is impossible to see everything, so don't go there in sandals or high heels. In winter, the annual Christmas illuminations are held, which is also recommended.