There is a museum access road just south of 57th street called Science drive. Take this short access and then veer left to the parking area (away from the museum). Find a place to park at the western end of the parking lot, cross the bridge on foot and walk the short distance to the garden. Signs are posted.
Navigate to youtube to see a special slideshow that i created. Use the search tag, "wander in the wyld."
Another infrared image from my Osaka Garden collection. Nvtls, the beauty of Osaka Gardens has diminished over the years due to patron neglect; the tranquility and introspection that one would find among the japanese landscape design is ruined by the ill-behavior (euphemism) of individuals. I would definitely recommend going in the early morning rather than the evening.