Riverside retreat with spa upscale shopping and dining free station shuttle bus rihga royal hotel osaka is connected to grand cube osaka convention center and nakanoshima station for trains across the city its a free 5 minute shuttle to jr osaka station where you can catch the kansai airport express or the osaka loop line to the shops and bars of namba waterfront and museums the nakanoshima waterfront is a pleasant promenade of rest areas and rose gardens ideal for strolling jogging or c