Take the Osaka Loop Line from JR Osaka Stn. and get off at Osakajokoen Stn. It is approx. an 18-minute walk to Osaka Castle.
Take the Subway Yotsubashi Line from Nishi-Umeda Stn. or Midosuji Line from Umeda Stn. and get off at Namba Stn.
Take the Subway Yotsubashi Line from Nishi-Umeda Stn. to Honmachi Stn. and transfer to the Subway Chuo Line bound for Cosmosquare. Get off at Osakako Stn. Approximately a 7-minute walk from the station.