Daisen Park
Sakai City's urban park is adjacent to the Nintoku-tennō-ryō tumulus (Daisen tumulus), which has been designated a World Heritage Site. The vast park of 380,000 m2 is filled with greenery and seasonal flowers and is dotted with large and small tumulus, including the Osamezuka tumulus and the Magodayuyama tumulus.
Daisen Park isn't actually that big—you can walk around it in about 30 minutes. The Japanese garden here is beautiful, and it's even more stunning during the fall foliage season. Definitely worth a visit.