On April 25, 2022, a play place for children, produced by Bohnelund, famous for its educational toys, was born in a picture of Kawaguchi Highway Oasis (Kawaguchi Parking Parking Area) in Iina Park Kawaguchi. The "Sky Highway" in the active area is a large athletic-like composite play equipment that makes use of the high ceiling of 5m, and is characterized by the ability to move up and down and left and right dynamically as if driving through the highway. The tube-type slide that dives into the ball pool is very popular. You can play by moving your whole body, such as climbing, sliding, and crossing. Other activities include a variety of activities, such as "Green Square", which has mobile play equipment such as air tracks, cyber wheels, "Blue Circuit" where you can play rides, and "Yellow Yard", an outdoor area where you can play with water and sand. The "orange pound" area to play from 0-year-old children and facilities for infants are also available. Since you are free to enter and exit on weekdays, you can return using an adjacent park, restaurant, stand, etc., and you can play all day.