The castle's stone walls are composed of approximately 500,000 to 1,000,000 stones quarried from various regions including Shodoshima.
The 'Octopus Stone' (Tako-ishi) is the largest stone in the castle walls, weighing roughly 108 tons.
The current castle keep is the third iteration; the original burned in 1615, and the second was struck by lightning in 1665.
The park's museum houses a golden tea room recreation, reflecting the extravagance of Toyotomi Hideyoshi's era.
The park contains a time capsule buried in 1970 during the Osaka World Expo, scheduled to be opened in 6970.
Osaka Castle Park occupies 105.6 hectares in the center of Osaka, centering around the reconstructed main keep of Osaka Castle. The site contains 13 structures designated as Important Cultural Properties by the Japanese government. It features the Nishinomaru Garden, which houses approximately 600 cherry trees, and a plum grove with over 1,200 trees of 100 different varieties. The grounds include massive stone walls and moats dating back to the late 16th century, originally commissioned by Toyotomi Hideyoshi. The castle keep functions as a museum detailing the history of the unification of Japan. The park serves as a major recreation zone with sports facilities, a music hall, and archery range. Much of the current park landscaping was established during post-war urban planning projects in the mid-20th century.
The view from the Gokurakubashi Bridge looking toward the north side of the castle keep.
Prioritize visiting the Nishinomaru Garden for specific views of the castle keep across the moat.
Wear comfortable walking shoes, as the park grounds are extensive and involve significant walking on gravel paths.
Utilize the designated observation areas rather than climbing the castle walls for photos.
Attempting to walk the entire perimeter of the massive moats if time is limited; prioritize the central keep and gardens.
The castle museum and Nishinomaru Garden are typically closed for several days during the New Year holiday period.
Refrain from touching historical stone walls or entering areas marked off by ropes; smoking is restricted to designated areas.