If you're looking for an honest-to-goodness amusement park with all the fun, quintessential rides, Seibuen Yuuenchi might be for you. This retro fairground has none of the flashy snazziness you might expect from Disneyland, Universal Studios, or Legoland, but for families with small children who are happy enough with merry-go-rounds, classic car rides, rotating teacups, and gentle flying elephants, Seibuen Yuuenchi will surely keep them busy for a day.
Adults will delight in the 360 degree views that include the Tama Lake and Mt. Fuji in the distance from 80 meters up on the gyro tower, or 62 meters up on the very slow and very safe ferris wheel. The ferris wheel is particularly romantic. One cycle takes 20 minutes and braver parties may opt for the transparent carriages. Smaller kids will delight in the rides in Hello Kitty land while bigger kids will want the excitement of the viking ship and the wave swinger.
In the summer, the park's main attraction is the huge water park while in the winter, the water park area hosts attractions like bouncy castles, trampolines, snow land (how the snow stays frozen in 10 degrees celsius is incredible), and panel skating. At night, various areas in the park, most spectacularly, the rose garden, are illuminated.
Families on a budget will be happy to know that they can bring their own food into the park. Pets are welcome (for a fee). There are dog runs and mazes, and some of the rides can accommodate pets.
The one day free pass is the best value to fully enjoy all the park's attractions.